//www.getgobooth.com/ 必威体育下载 daily 15 2024-08-20 10:33:39 apsoffice@iphy.ac.cn apsoffice@iphy.ac.cn 2024-08-20 10:33:39 zh Copyright ©Acta Physica Sinica All Rights Reserved. 京ICP备05002789号-1 Address: PostCode：100190 Phone: 010-82649829，82649241,82649863 Email: apsoffice@iphy.ac.cn Copyright ©Acta Physica Sinica All Rights Reserved apsoffice@iphy.ac.cn 1000-3290 //www.getgobooth.com/en/article/doi/10.7498/aps.31.271 Author(s): LI ZONG-QUAN, ZHANG LI-DE, LONG QI-YI, HE YI-ZHEN, LI YONG-HONG, TIAN FENG-ZUO <br/><p>In this paper, we discuss the special structures of dislocations in h.c.p. metals. Two sets of dislocations that lay on two parallel non-basal slip planes will change their shape soasto become zigzag and form regular dislocation structures if the spacing of the slip planes is smaller than one quarter of the distance between the dislocations in the dislocation array. Under TEM observation, these structures appear to be regular dislocation networks that present double lines in one direction. Two of these dislocation networks in α-Ti were observed and others were shoAved schematically.</p> <br/>Acta Physica Sinica. 1982 31(3): 271-277. Published 2005-07-27 Author(s): LI ZONG-QUAN, ZHANG LI-DE, LONG QI-YI, HE YI-ZHEN, LI YONG-HONG, TIAN FENG-ZUO <br/><p>In this paper, we discuss the special structures of dislocations in h.c.p. metals. Two sets of dislocations that lay on two parallel non-basal slip planes will change their shape soasto become zigzag and form regular dislocation structures if the spacing of the slip planes is smaller than one quarter of the distance between the dislocations in the dislocation array. Under TEM observation, these structures appear to be regular dislocation networks that present double lines in one direction. Two of these dislocation networks in α-Ti were observed and others were shoAved schematically.</p> <br/>Acta Physica Sinica. 1982 31(3): 271-277. Published 2005-07-27 ANALYSIS OF THE SPECIAL STRUCTURES OF DISLOCATIONS IN HCP METALS LI ZONG-QUAN, ZHANG LI-DE, LONG QI-YI, HE YI-ZHEN, LI YONG-HONG, TIAN FENG-ZUO 2005-07-27 Personal use only, all commercial or other reuse prohibited Acta Physica Sinica. 1982 31(3): 271-277. article doi:10.7498/aps.31.271 10.7498/aps.31.271 Acta Physica Sinica 31 3 2005-07-27 //www.getgobooth.com/en/article/doi/10.7498/aps.31.271 271-277 //www.getgobooth.com/en/article/doi/10.7498/aps.31.278 Author(s): YANG CHUAN-ZHENG, ZHU JIAN-SHENG <br/><p>Defects in dislocation-free silicon single crystals grown by floating-zone method in the atmosphere containing Ar-H2 or H2 were investigated by means of chemical etching and X-ray projection topography. It has been found that anomalous etch pits and defect density are closely related to the hydrogen content. (Change of the defect density with hydrogen content shows a maximum at approximately 10% hydrogen for ay-grown crystals. After annealing at high temperatures, the defect density in the inner part of the crystal is found to be more than that at the surface and also more than that in as-grown state when hydrogen content is greater than 25% in the atmosphere.) Defects in annealed crystals grown in the pure hydrogen atmosphere have been observed. The relationship between some defects showing in topographs and etch patterns was found. Effect of annealing on wafer with these defects was also observed. Finally, clustering and precipitating of hydrogen have been discussed. Dislocation loops formed at precipitate-matrix interface were described. The process of motion and interaction of the loops as well as the forming of multi-centre loops at high temperatures were also discussed briefly.</p> <br/>Acta Physica Sinica. 1982 31(3): 278-284. Published 2005-07-27 Author(s): YANG CHUAN-ZHENG, ZHU JIAN-SHENG <br/><p>Defects in dislocation-free silicon single crystals grown by floating-zone method in the atmosphere containing Ar-H2 or H2 were investigated by means of chemical etching and X-ray projection topography. It has been found that anomalous etch pits and defect density are closely related to the hydrogen content. (Change of the defect density with hydrogen content shows a maximum at approximately 10% hydrogen for ay-grown crystals. After annealing at high temperatures, the defect density in the inner part of the crystal is found to be more than that at the surface and also more than that in as-grown state when hydrogen content is greater than 25% in the atmosphere.) Defects in annealed crystals grown in the pure hydrogen atmosphere have been observed. The relationship between some defects showing in topographs and etch patterns was found. Effect of annealing on wafer with these defects was also observed. Finally, clustering and precipitating of hydrogen have been discussed. Dislocation loops formed at precipitate-matrix interface were described. The process of motion and interaction of the loops as well as the forming of multi-centre loops at high temperatures were also discussed briefly.</p> <br/>Acta Physica Sinica. 1982 31(3): 278-284. Published 2005-07-27 INVESTIGATION OF THE DEFECTS IN SILICON SINGLE CRYSTALS GROWN BY FLOATING-ZONE METHOD IN THE ATMOSPHERE CONTAINING HYDROGEN YANG CHUAN-ZHENG, ZHU JIAN-SHENG 2005-07-27 Personal use only, all commercial or other reuse prohibited Acta Physica Sinica. 1982 31(3): 278-284. article doi:10.7498/aps.31.278 10.7498/aps.31.278 Acta Physica Sinica 31 3 2005-07-27 //www.getgobooth.com/en/article/doi/10.7498/aps.31.278 278-284 //www.getgobooth.com/en/article/doi/10.7498/aps.31.285 Author(s): ZHANG ZHAO-QING <br/><p>The coherent-potential approximation (CPA) for both single-particle and two-particle Green's functions are rederived using locator expansion method proposed by Matsubara and Toyozawa. Instead of using self-contained cumulant expansion to treat the excluded volume effects for atoms, we use a diagrammatic method with the idea first proposed by Yonezawa. A systemmatic method is used to generate self-consistent equations for all single-site diagrams. We emphasis our treatment for two-particle Green's function which can be extended to obtain the corresponding CPA equation for electrical conductivity in liquid metals and amorphous solids.</p> <br/>Acta Physica Sinica. 1982 31(3): 285-293. Published 2005-07-27 Author(s): ZHANG ZHAO-QING <br/><p>The coherent-potential approximation (CPA) for both single-particle and two-particle Green's functions are rederived using locator expansion method proposed by Matsubara and Toyozawa. Instead of using self-contained cumulant expansion to treat the excluded volume effects for atoms, we use a diagrammatic method with the idea first proposed by Yonezawa. A systemmatic method is used to generate self-consistent equations for all single-site diagrams. We emphasis our treatment for two-particle Green's function which can be extended to obtain the corresponding CPA equation for electrical conductivity in liquid metals and amorphous solids.</p> <br/>Acta Physica Sinica. 1982 31(3): 285-293. Published 2005-07-27 AN ALTERNATIVE DERIVATION OF COHERENT-POTENTIAL APPROXIMATION FOR DISORDERED ALLOYS-TIGHT BINDING MODEL ZHANG ZHAO-QING 2005-07-27 Personal use only, all commercial or other reuse prohibited Acta Physica Sinica. 1982 31(3): 285-293. article doi:10.7498/aps.31.285 10.7498/aps.31.285 Acta Physica Sinica 31 3 2005-07-27 //www.getgobooth.com/en/article/doi/10.7498/aps.31.285 285-293 //www.getgobooth.com/en/article/doi/10.7498/aps.31.294 Author(s): ZHANG ZHAO-QING <br/><p>A tight-binding model is used to obtain the electrical conductivity for liquid metals and amorphous solids within the framework of coherent-potential approximation. Following the method developed in our previous paper, the approximated equations for averaged two-particle Green's function of a lattice-gas model are obtained with short-range order for atoms included. The corresponding equations for liquid metals and amorphous solids are reduced by taking the limit of the lattice-gas model. Since the self-consistent equations so obtained contain all single-site diagrams, they have all the properties of the coherent-potential approximation.</p> <br/>Acta Physica Sinica. 1982 31(3): 294-310. Published 2005-07-27 Author(s): ZHANG ZHAO-QING <br/><p>A tight-binding model is used to obtain the electrical conductivity for liquid metals and amorphous solids within the framework of coherent-potential approximation. Following the method developed in our previous paper, the approximated equations for averaged two-particle Green's function of a lattice-gas model are obtained with short-range order for atoms included. The corresponding equations for liquid metals and amorphous solids are reduced by taking the limit of the lattice-gas model. Since the self-consistent equations so obtained contain all single-site diagrams, they have all the properties of the coherent-potential approximation.</p> <br/>Acta Physica Sinica. 1982 31(3): 294-310. Published 2005-07-27 ELECTRICAL CONDUCTIVITY OF LIQUID METALS AND AMORPHOUS SOLIDS-COHERENT-POTENTIAL APPROXIMATION ZHANG ZHAO-QING 2005-07-27 Personal use only, all commercial or other reuse prohibited Acta Physica Sinica. 1982 31(3): 294-310. article doi:10.7498/aps.31.294 10.7498/aps.31.294 Acta Physica Sinica 31 3 2005-07-27 //www.getgobooth.com/en/article/doi/10.7498/aps.31.294 294-310 //www.getgobooth.com/en/article/doi/10.7498/aps.31.311 Author(s): ZHANG SHI-WEI, SU RU-KENG <br/><p>The massive and massless boson bound states in Kerr metric are discussed. It is found that the massless boson cannot be attracted by Kerr black hole to form bound states. In extreme Kerr geometry and large l cases, our results are in agreement with that of deFelic's, but we extend his result to arbitrary l and non-extreme Kerr geometry. For massive bosons, if the bound state conditions are satisfied, it is possible to form bound states in the extreme Kerr metric. Its energy mode, wave functions and bound states conditions are given.</p> <br/>Acta Physica Sinica. 1982 31(3): 311-317. Published 2005-07-27 Author(s): ZHANG SHI-WEI, SU RU-KENG <br/><p>The massive and massless boson bound states in Kerr metric are discussed. It is found that the massless boson cannot be attracted by Kerr black hole to form bound states. In extreme Kerr geometry and large l cases, our results are in agreement with that of deFelic's, but we extend his result to arbitrary l and non-extreme Kerr geometry. For massive bosons, if the bound state conditions are satisfied, it is possible to form bound states in the extreme Kerr metric. Its energy mode, wave functions and bound states conditions are given.</p> <br/>Acta Physica Sinica. 1982 31(3): 311-317. Published 2005-07-27 THE BOSON BOUND STATES IN KERR METRIE ZHANG SHI-WEI, SU RU-KENG 2005-07-27 Personal use only, all commercial or other reuse prohibited Acta Physica Sinica. 1982 31(3): 311-317. article doi:10.7498/aps.31.311 10.7498/aps.31.311 Acta Physica Sinica 31 3 2005-07-27 //www.getgobooth.com/en/article/doi/10.7498/aps.31.311 311-317 //www.getgobooth.com/en/article/doi/10.7498/aps.31.318 Author(s): PAN SHAO-HUA, HAN QUAN-SHENG <br/><p>Using semiclassical theory to treat the distributed feedback dye laser, we obtain nonlinear wave-coupling equations and the corresponding analytical solutions as well as the threshold relation. Some physical phenomena such as spatial hole burning and mode-competition are analyzed.</p> <br/>Acta Physica Sinica. 1982 31(3): 318-327. Published 2005-07-27 Author(s): PAN SHAO-HUA, HAN QUAN-SHENG <br/><p>Using semiclassical theory to treat the distributed feedback dye laser, we obtain nonlinear wave-coupling equations and the corresponding analytical solutions as well as the threshold relation. Some physical phenomena such as spatial hole burning and mode-competition are analyzed.</p> <br/>Acta Physica Sinica. 1982 31(3): 318-327. Published 2005-07-27 SEMICLASSICAL THEORY OF DISTRIBUTED FEEDBACK DYE LASERS PAN SHAO-HUA, HAN QUAN-SHENG 2005-07-27 Personal use only, all commercial or other reuse prohibited Acta Physica Sinica. 1982 31(3): 318-327. article doi:10.7498/aps.31.318 10.7498/aps.31.318 Acta Physica Sinica 31 3 2005-07-27 //www.getgobooth.com/en/article/doi/10.7498/aps.31.318 318-327 //www.getgobooth.com/en/article/doi/10.7498/aps.31.328 Author(s): LIU SONG-HAO, WANG FU-GUI, YU BING-KUN, LIU MIN, CHEN YI-SHEN, ZHOU FU-XIN <br/><p>We report here the experimental results of high order coherent Raman spectra (CRS) in the ealcite using a YAG laser CARS system. CARS spectra from the 1st to the 6th order and coherent Stokes Raman spectra (CSRS) from the 1st to the 2nd order and the backward CARS spectra were observed. Factors affecting the high order CRS and related problems are considered.</p> <br/>Acta Physica Sinica. 1982 31(3): 328-334. Published 2005-07-27 Author(s): LIU SONG-HAO, WANG FU-GUI, YU BING-KUN, LIU MIN, CHEN YI-SHEN, ZHOU FU-XIN <br/><p>We report here the experimental results of high order coherent Raman spectra (CRS) in the ealcite using a YAG laser CARS system. CARS spectra from the 1st to the 6th order and coherent Stokes Raman spectra (CSRS) from the 1st to the 2nd order and the backward CARS spectra were observed. Factors affecting the high order CRS and related problems are considered.</p> <br/>Acta Physica Sinica. 1982 31(3): 328-334. Published 2005-07-27 SPECTROSCOPY OF HIGH ORDER CARS AND CSRS LIU SONG-HAO, WANG FU-GUI, YU BING-KUN, LIU MIN, CHEN YI-SHEN, ZHOU FU-XIN 2005-07-27 Personal use only, all commercial or other reuse prohibited Acta Physica Sinica. 1982 31(3): 328-334. article doi:10.7498/aps.31.328 10.7498/aps.31.328 Acta Physica Sinica 31 3 2005-07-27 //www.getgobooth.com/en/article/doi/10.7498/aps.31.328 328-334 //www.getgobooth.com/en/article/doi/10.7498/aps.31.335 Author(s): PAN JIN-SHENG <br/><p>In this paper, we show that a simple variational method proposed by Huybrechts is also valid for the surface or interface weak coupling polaron in polar crystals. The mass change and the binding energy of the surface polaron, which are given by expressions (27) and (35) in the text respectively, are dependent on the dielectric costant ε0, ε∞1,ε∞2 and the Fr?hlich coupling constant α. It is shown that the surface polaron, as compared to bulk polaron, have small binding energy and large state radius.</p> <br/>Acta Physica Sinica. 1982 31(3): 335-347. Published 2005-07-27 Author(s): PAN JIN-SHENG <br/><p>In this paper, we show that a simple variational method proposed by Huybrechts is also valid for the surface or interface weak coupling polaron in polar crystals. The mass change and the binding energy of the surface polaron, which are given by expressions (27) and (35) in the text respectively, are dependent on the dielectric costant ε0, ε∞1,ε∞2 and the Fr?hlich coupling constant α. It is shown that the surface polaron, as compared to bulk polaron, have small binding energy and large state radius.</p> <br/>Acta Physica Sinica. 1982 31(3): 335-347. Published 2005-07-27 THE SURFACE OR INTERFACE WEAK COUPLING POLARON IN POLAR CRYSTALS PAN JIN-SHENG 2005-07-27 Personal use only, all commercial or other reuse prohibited Acta Physica Sinica. 1982 31(3): 335-347. article doi:10.7498/aps.31.335 10.7498/aps.31.335 Acta Physica Sinica 31 3 2005-07-27 //www.getgobooth.com/en/article/doi/10.7498/aps.31.335 335-347 //www.getgobooth.com/en/article/doi/10.7498/aps.31.348 Author(s): WANG DE-NING, WANG WEI-YUAN <br/><p>Using Hartree-Fock-Slater potential instead of Thomas-Fermi potential, a normalized formula of electronic stopping power is derived. Combined with the idea of effective atomic number, a correlate formula of electronic stopping power Se(E) and energy is obtained. The oscillation of Se(E). with atomic number of ions or target atoms are quantitatively calculated on the basis of the former formula. The results coincide well with experimental data in the literature. By using the later formula, the Se(E) of a variety of ion-target systems are quantitatively calculated. As compared with the formula in reference [1], the present results agree more satisfactorily with the experimental values and fit a broader range of energy.</p> <br/>Acta Physica Sinica. 1982 31(3): 348-354. Published 2005-07-27 Author(s): WANG DE-NING, WANG WEI-YUAN <br/><p>Using Hartree-Fock-Slater potential instead of Thomas-Fermi potential, a normalized formula of electronic stopping power is derived. Combined with the idea of effective atomic number, a correlate formula of electronic stopping power Se(E) and energy is obtained. The oscillation of Se(E). with atomic number of ions or target atoms are quantitatively calculated on the basis of the former formula. The results coincide well with experimental data in the literature. By using the later formula, the Se(E) of a variety of ion-target systems are quantitatively calculated. As compared with the formula in reference [1], the present results agree more satisfactorily with the experimental values and fit a broader range of energy.</p> <br/>Acta Physica Sinica. 1982 31(3): 348-354. Published 2005-07-27 CALCULATION OF THE z OSCILLATION OF ELECTRONIC STOPPING POWER WANG DE-NING, WANG WEI-YUAN 2005-07-27 Personal use only, all commercial or other reuse prohibited Acta Physica Sinica. 1982 31(3): 348-354. article doi:10.7498/aps.31.348 10.7498/aps.31.348 Acta Physica Sinica 31 3 2005-07-27 //www.getgobooth.com/en/article/doi/10.7498/aps.31.348 348-354 //www.getgobooth.com/en/article/doi/10.7498/aps.31.355 Author(s): HUO YU-PING <br/><p>In this article, the question about how to describe the space correlation of the fluctuation in a chemical reaction system has been analysed. Eeferring to the reaction-diffusion equation., we have successfully introduced the diffusion or pressure terms into master equation of the probability distribution function of density. Solving this master equation for infinite medium, a series of waves have been obtained. The first branch is the average density wave which has already been obtained from the reaction-diffusion equation. It is just the acoustic wave in gases. Other branches decribe the propagation of the fluctuation moments of the local density. They present the propagation processes of the local distortion of the probability distribution function. The method to solve the initial problem of the master equation have also been discussed.</p> <br/>Acta Physica Sinica. 1982 31(3): 355-368. Published 2005-07-27 Author(s): HUO YU-PING <br/><p>In this article, the question about how to describe the space correlation of the fluctuation in a chemical reaction system has been analysed. Eeferring to the reaction-diffusion equation., we have successfully introduced the diffusion or pressure terms into master equation of the probability distribution function of density. Solving this master equation for infinite medium, a series of waves have been obtained. The first branch is the average density wave which has already been obtained from the reaction-diffusion equation. It is just the acoustic wave in gases. Other branches decribe the propagation of the fluctuation moments of the local density. They present the propagation processes of the local distortion of the probability distribution function. The method to solve the initial problem of the master equation have also been discussed.</p> <br/>Acta Physica Sinica. 1982 31(3): 355-368. Published 2005-07-27 THE SPACE-TIME CORRELATION OF THE FLUCTUATION IN A CHEMICAL REACTION SYSTEM (I)——FLUCTUATION, DIFFUSION AND WARES HUO YU-PING 2005-07-27 Personal use only, all commercial or other reuse prohibited Acta Physica Sinica. 1982 31(3): 355-368. article doi:10.7498/aps.31.355 10.7498/aps.31.355 Acta Physica Sinica 31 3 2005-07-27 //www.getgobooth.com/en/article/doi/10.7498/aps.31.355 355-368 //www.getgobooth.com/en/article/doi/10.7498/aps.31.359 Author(s): HUO YU-PING, ZHANG CHENG <br/><p>Based on the theory developed in the first paper of this series, we have discussed the influences of the fluctuation waves on the critical behavior of a non-linear chemical reaction system. For this purpose, the usual bifurcation theory has been further developed and some divergence problems has been eliminated by renormalization.Taking the trimolecular model as the concrete object, the stability of the homogeneous steady state has been analysed in detail, and, in addition, we also discussed the possibility that the space structure of the density and fluctuation for a simpler case could appear.</p> <br/>Acta Physica Sinica. 1982 31(3): 359-385. Published 2005-07-27 Author(s): HUO YU-PING, ZHANG CHENG <br/><p>Based on the theory developed in the first paper of this series, we have discussed the influences of the fluctuation waves on the critical behavior of a non-linear chemical reaction system. For this purpose, the usual bifurcation theory has been further developed and some divergence problems has been eliminated by renormalization.Taking the trimolecular model as the concrete object, the stability of the homogeneous steady state has been analysed in detail, and, in addition, we also discussed the possibility that the space structure of the density and fluctuation for a simpler case could appear.</p> <br/>Acta Physica Sinica. 1982 31(3): 359-385. Published 2005-07-27 THE SPACE-TIME CORRELATION OF THE FLUCTUATION IN A CHEMICAL REACTION SYSTEM (II)——THE CRITICAL BEHAVIOR OF NON-LINEAR SYSTEMS HUO YU-PING, ZHANG CHENG 2005-07-27 Personal use only, all commercial or other reuse prohibited Acta Physica Sinica. 1982 31(3): 359-385. article doi:10.7498/aps.31.359 10.7498/aps.31.359 Acta Physica Sinica 31 3 2005-07-27 //www.getgobooth.com/en/article/doi/10.7498/aps.31.359 359-385 //www.getgobooth.com/en/article/doi/10.7498/aps.31.386 Author(s): CHENG LU <br/><p>A scheme of multi-exposure holographic method for obtaining a single mask for realization of a kind of unitary transforms is suggested. The formula of signal-to-noise ratio of the transform due to masks of this sort is deduced from a statistical point of view.</p> <br/>Acta Physica Sinica. 1982 31(3): 386-392. Published 2005-07-27 Author(s): CHENG LU <br/><p>A scheme of multi-exposure holographic method for obtaining a single mask for realization of a kind of unitary transforms is suggested. The formula of signal-to-noise ratio of the transform due to masks of this sort is deduced from a statistical point of view.</p> <br/>Acta Physica Sinica. 1982 31(3): 386-392. Published 2005-07-27 A SCHEME OF HOLOGRAPHIC METHOD FOR OBTAINING A SINGLE MASK FOR REALIZATION OF GENERALIZED TRANSFORMS CHENG LU 2005-07-27 Personal use only, all commercial or other reuse prohibited Acta Physica Sinica. 1982 31(3): 386-392. article doi:10.7498/aps.31.386 10.7498/aps.31.386 Acta Physica Sinica 31 3 2005-07-27 //www.getgobooth.com/en/article/doi/10.7498/aps.31.386 386-392 //www.getgobooth.com/en/article/doi/10.7498/aps.31.393 Author(s): ZHAN DA-SAN <br/><p>In this paper, we generalize the method proposed in [1] to solve the phase retrieval problem of spatial correlation functions in optical systems. A set of equations for determining the phase of the correlation functions is given. Using these equations and the iteration computing method, the phase of correlation functions can be determined. It can be shown that, if the transmission matrix K is unitary, in the coherent limit, the equations derived in this paper turn out to be that obtained in [1].</p> <br/>Acta Physica Sinica. 1982 31(3): 393-396. Published 2005-07-27 Author(s): ZHAN DA-SAN <br/><p>In this paper, we generalize the method proposed in [1] to solve the phase retrieval problem of spatial correlation functions in optical systems. A set of equations for determining the phase of the correlation functions is given. Using these equations and the iteration computing method, the phase of correlation functions can be determined. It can be shown that, if the transmission matrix K is unitary, in the coherent limit, the equations derived in this paper turn out to be that obtained in [1].</p> <br/>Acta Physica Sinica. 1982 31(3): 393-396. Published 2005-07-27 ON THE PHASE RETRIEVAL PROBLEM OF THE SPATIAL CORRELATION FUNCTION IN OPTICAL SYSTEMS ZHAN DA-SAN 2005-07-27 Personal use only, all commercial or other reuse prohibited Acta Physica Sinica. 1982 31(3): 393-396. article doi:10.7498/aps.31.393 10.7498/aps.31.393 Acta Physica Sinica 31 3 2005-07-27 //www.getgobooth.com/en/article/doi/10.7498/aps.31.393 393-396 //www.getgobooth.com/en/article/doi/10.7498/aps.31.397 Author(s): XIA SHENG-JIE, WANG CHUN-KUI, FU YU-SHOU, WU BAO-GEN, FANG HUI-YING, ZHOU GUANG-DI <br/><p>In the investigation of the interaction of the intense CW and pulsed CO2 laser with targets, we have studied first the phenomena on targets and observed the forming-time of the crater and the processes of torsion of the direction of the laser plume produced by CW laser. We have also observed the development of the plasma, the air breakdown and the unluminous phenomena such as the plume and shock-wave produced by pulsed laser etc.The device of the framing high-speed interferography with pulsed He-Ne laser was used.</p> <br/>Acta Physica Sinica. 1982 31(3): 397-403. Published 2005-07-27 Author(s): XIA SHENG-JIE, WANG CHUN-KUI, FU YU-SHOU, WU BAO-GEN, FANG HUI-YING, ZHOU GUANG-DI <br/><p>In the investigation of the interaction of the intense CW and pulsed CO2 laser with targets, we have studied first the phenomena on targets and observed the forming-time of the crater and the processes of torsion of the direction of the laser plume produced by CW laser. We have also observed the development of the plasma, the air breakdown and the unluminous phenomena such as the plume and shock-wave produced by pulsed laser etc.The device of the framing high-speed interferography with pulsed He-Ne laser was used.</p> <br/>Acta Physica Sinica. 1982 31(3): 397-403. Published 2005-07-27 THE PHENOMENA ON TARGET IRRADIATED BY INTENSE CO2 LASER XIA SHENG-JIE, WANG CHUN-KUI, FU YU-SHOU, WU BAO-GEN, FANG HUI-YING, ZHOU GUANG-DI 2005-07-27 Personal use only, all commercial or other reuse prohibited Acta Physica Sinica. 1982 31(3): 397-403. article doi:10.7498/aps.31.397 10.7498/aps.31.397 Acta Physica Sinica 31 3 2005-07-27 //www.getgobooth.com/en/article/doi/10.7498/aps.31.397 397-403 //www.getgobooth.com/en/article/doi/10.7498/aps.31.404 Author(s): GAN FU-XI, DENG HE, LIU HUI-MING <br/><p>The ESR of Cr3+ in phosphate, fluorophosphate and fluoride glasses has been studied. The effective g factors of Cr3+ have been calculated with the Spin-Hamil-tonian. It is pointed out that the low-field spectra resulted mainly from transition between two Kramers doublets. Hamiltonian parameters have been determined: D=0.15-0.4 cm-1, E/D=0.15-0.3; zero-field splitting: 0.3-0.8 cm-1. In this paper, the ESR of Mo3+ ion in phosphate glass is also reported.</p> <br/>Acta Physica Sinica. 1982 31(3): 404-409. Published 2005-07-27 Author(s): GAN FU-XI, DENG HE, LIU HUI-MING <br/><p>The ESR of Cr3+ in phosphate, fluorophosphate and fluoride glasses has been studied. The effective g factors of Cr3+ have been calculated with the Spin-Hamil-tonian. It is pointed out that the low-field spectra resulted mainly from transition between two Kramers doublets. Hamiltonian parameters have been determined: D=0.15-0.4 cm-1, E/D=0.15-0.3; zero-field splitting: 0.3-0.8 cm-1. In this paper, the ESR of Mo3+ ion in phosphate glass is also reported.</p> <br/>Acta Physica Sinica. 1982 31(3): 404-409. Published 2005-07-27 PARAMAGNETIC RESONANCE STUDY ON TRANSITION METAL IONS IN PHOSPHATE, FLUOROPHOSPHATE AND FLUORIDE GLASSES(I)——Cr3+,Mo3+ GAN FU-XI, DENG HE, LIU HUI-MING 2005-07-27 Personal use only, all commercial or other reuse prohibited Acta Physica Sinica. 1982 31(3): 404-409. article doi:10.7498/aps.31.404 10.7498/aps.31.404 Acta Physica Sinica 31 3 2005-07-27 //www.getgobooth.com/en/article/doi/10.7498/aps.31.404 404-409 //www.getgobooth.com/en/article/doi/10.7498/aps.31.410 Author(s): GAN FU-XI, DENG HE, LIU HUI-MING <br/><p>The BSE of Co2+ in the three kinds of glass has been observed at 77 K, it is shown that the Co2+ ions are mostly situated on tetrahedral sites. We conclude the order of the effective g value obtained from the experiments is related to a slight change of the chemical bonding nature between the central ions and the ligands. In addition, the ESR of Ni2+ in fluorophosphate glass has been observed and its spectrum is identified. A detailed calculation with the spin-Hamiltonian is carried out, and it explains why the ESR signal of Ni2+ in most oxide glasses can hardly be observed.</p> <br/>Acta Physica Sinica. 1982 31(3): 410-414. Published 2005-07-27 Author(s): GAN FU-XI, DENG HE, LIU HUI-MING <br/><p>The BSE of Co2+ in the three kinds of glass has been observed at 77 K, it is shown that the Co2+ ions are mostly situated on tetrahedral sites. We conclude the order of the effective g value obtained from the experiments is related to a slight change of the chemical bonding nature between the central ions and the ligands. In addition, the ESR of Ni2+ in fluorophosphate glass has been observed and its spectrum is identified. A detailed calculation with the spin-Hamiltonian is carried out, and it explains why the ESR signal of Ni2+ in most oxide glasses can hardly be observed.</p> <br/>Acta Physica Sinica. 1982 31(3): 410-414. Published 2005-07-27 PARAMAGNETIC RESONANCE STUDY ON TRANSITION METAL IONS IN PHOSPHATE, FLUOROPHOSPHATE AND FLUORIDE GLASSES (II)——Co2+, Ni2+ GAN FU-XI, DENG HE, LIU HUI-MING 2005-07-27 Personal use only, all commercial or other reuse prohibited Acta Physica Sinica. 1982 31(3): 410-414. article doi:10.7498/aps.31.410 10.7498/aps.31.410 Acta Physica Sinica 31 3 2005-07-27 //www.getgobooth.com/en/article/doi/10.7498/aps.31.410 410-414 //www.getgobooth.com/en/article/doi/10.7498/aps.31.415 Author(s): GE CHUAN-ZHEN, XU XIU-YING, FENG DUAN <br/><p>The relationship between the dislocations, the inclusions and the growth striations in YAG single crystals were studied with birefringence topography. The experimental evidence shows that the inclusions are adsorped preferentially at the outcrops of dislocations at the solid-liquid interface and the relative sizes of the inelusions correspond to the heights of growth-steps which are related to the normal components of Burgers vectors of dislocations.</p> <br/>Acta Physica Sinica. 1982 31(3): 415-418. Published 2005-07-27 Author(s): GE CHUAN-ZHEN, XU XIU-YING, FENG DUAN <br/><p>The relationship between the dislocations, the inclusions and the growth striations in YAG single crystals were studied with birefringence topography. The experimental evidence shows that the inclusions are adsorped preferentially at the outcrops of dislocations at the solid-liquid interface and the relative sizes of the inelusions correspond to the heights of growth-steps which are related to the normal components of Burgers vectors of dislocations.</p> <br/>Acta Physica Sinica. 1982 31(3): 415-418. Published 2005-07-27 DISLOCATIONS AND INCLUSIONS IN CZOCHRALSKI METHOD-GROWN YAG SINGLE CRYSTALS GE CHUAN-ZHEN, XU XIU-YING, FENG DUAN 2005-07-27 Personal use only, all commercial or other reuse prohibited Acta Physica Sinica. 1982 31(3): 415-418. article doi:10.7498/aps.31.415 10.7498/aps.31.415 Acta Physica Sinica 31 3 2005-07-27 //www.getgobooth.com/en/article/doi/10.7498/aps.31.415 415-418

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