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Open Raman Cell to Avoid Window Damage

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chinese Journal of Lasers 1999年第6期8卷 3-5页

作者： XU Jianqiu LOU Qihong DONG Jingxing WEI Yunrong (shanghai institute of Optics and Fine Mechanics, chinese academy of sciences, shanghai 201800, china) 中科院上海光学精密机械所上海

An open Raman cell was designed to avoid the window damage in high power Raman amplifiers. The conversion efficiency and the beam quality of the Stokes pulse were measured as a function of time when Raman gases flowed out from the Raman cell. The effects of Raman gas density and diameter of Raman cell on the specification were also discussed. The results showed that this open Raman cell was useful for high power Raman system.

关键词： Raman cell window damage Raman amplifier

Some considerations of organic materials for high density optical disk data storage

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chinese Science Bulletin 2000年第6期45卷 572-576页

作者： GAN Fuxishanghai institute of Optics and Fine Mechanics, chinese academy of sciences, shanghai 201800, china shanghai institute of Optics and Fine Mechanics Chinese Academy of Sciences Shanghai China

The application possibilities of organic materials for high density optical disk data storage are discussed. Several points, such as physical and chemical stabilities, wavelength match and reversible property changes,... 详细信息

关键词： organic materials high density optical disk.

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Photosensitized damage to telomere overhang and telomerase RNA by riboflavin

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Progress in Natural Science:Materials International 2008年第4期18卷 401-404页

作者： Yuxia Liu, Fuqiang Du, Weizhen Lin , Tiecheng Tu, Wenxin Li, Nianyun Lin Key Laboratory of Nuclear Analysis Techniques, shanghai institute of applied physics, chinese academy of sciences, shanghai 201800, china Key Laboratory of Nuclear Analysis Techniques Shanghai Institute of Applied Physics Chinese Academy of Sciences Shanghai 201800 China

By ESR spin elimination and photocleavage assay, the mechanisms of one-electron oxidation damage of oligonucleotides by excited triplet state of riboflavin (Rb) have been elucidated. The results demonstrate that Rb, an endogenous photosensitizer, is capable of cleav- ing single-stranded telomeric overhang and the template region of telomerase RNA under UVA irradiation, resulting in blocking of reverse transcription of telomeric DNA which leads to the apoptosis of cancer cells ultimately.

关键词： Telomere Telomerase Riboflavin ESR spin elimination Excited triplet state

Simulation of Electron Temperature in Argon Clusters Subjected to Intense Laser Fields

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chinese Journal of Lasers 2000年第3期9卷 72-77页

作者： LEI Anle NI Guoquan LI Zhong XU Zhizhan (shanghai institute of Optics and Fine Mechanics, The chinese academy of sciences, shanghai 201800, china) 中科院上海光学精密机械所上海

Argon clusters subjected to intense femtosecond laser pulses are ionized by the optical fields and inelastic electron-ion collisions. The cluster plasmas absorb the laser energy through collisional inverse bremsstrahlung, leading the argon cluster plasmas to very hot states. The calculated electron temperature in the clusters indicates that the intense laser-cluster interactions are more energetic than interactions with molecules.

关键词： argon cluster intense laser electron temperature

Simulation of Isotopic Angular Effects under Ion Bombardment of a^(92)Mo-^(100)Mo Target

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Journal of Materials Science & Technology 1997年第1期13卷 65-68页

作者： Liping ZHENG (shanghai institute of Nuclear Research, chinese academy of sciences, shanghai 201800, china)Risheng LI and Shuyou LI(Lab. of Atomic Imaging of Solids, institute of Metal Research, chinese academy of sciences,Shenyang 110015, china) shanghai institute of Nuclear Research Chinese Academy of Sciences Shanghai 201800 China Lab. of Atomic Imaging of Solids Institute of Metal Research Chinese Academy of Sciences Shenyang 110015 China

Under 5 keV Ar ion bombardment of a 92Mo-100Mo target, we have investigated isotopic angular effects by means of the static and the dynamic Monte Carlo programs. Our calculated results are in quantitative agreement with the measured and other calculated results. The conclusion consistences among theories. simulations and measurements are also discussed.

关键词： Mo Target Simulation of Isotopic Angular Effects under Ion Bombardment of a Target

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Unexpected Population Inversion in a Λ-type Medium

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chinese Journal of Lasers 1996年第4期B5卷 307-311+3112页

作者： GONG Shangqing DU Side XU Zhizhan(shanghai institute of Optics and Fine Mechanics,chinese academy of sciences,shanghai 201800)PAN Shaohua(institute of physics,chinese academy of sciences,Beijing 100080) Inst of physics Chinese Acad of Sciences Beijing China

ＵｎｅｘｐｅｃｔｅｄＰｏｐｕｌａｔｉｏｎＩｎｖｅｒｓｉｏｎｉｎａΛ－ｔｙｐｅＭｅｄｉｕｍ￥ＧＯＮＧＳｈａｎｇｑｉｎｇ；ＤＵＳｉｄｅ；ＸＵＺｈｉｚｈａｎ（ＳｈａｎｇｈａｉＩｎｓｔｉｔｕｔｅｏｆＯｐｔｉｃｓａｎｄＦｉｎｅ... 详细信息

ＵｎｅｘｐｅｃｔｅｄＰｏｐｕｌａｔｉｏｎＩｎｖｅｒｓｉｏｎｉｎａΛ－ｔｙｐｅＭｅｄｉｕｍ￥ＧＯＮＧＳｈａｎｇｑｉｎｇ；ＤＵＳｉｄｅ；ＸＵＺｈｉｚｈａｎ（ＳｈａｎｇｈａｉＩｎｓｔｉｔｕｔｅｏｆＯｐｔｉｃｓａｎｄＦｉｎｅＭｅｃｈａｎｉｃｓ，Ｃｈｉｎｅｓｅ...

关键词： Population inversion Λ-type medium coherent population trapping

Regular behaviors in SU(2) Yang-Mills classical mechanics

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Nuclear Science and Techniques 1997年第3期8卷 139-143页

作者： Xu Xiao Ming (shanghai institute of Nuclear Research, the chinese academy of sciences, shanghai 201800) shanghaiinstituteofNuclearResearch theChineseAcademyofSciencesShanghai201800

ＲｅｇｕｌａｒｂｅｈａｖｉｏｒｓｉｎＳＵ（２）ＹａｎｇＭｉｌｓｃｌａｓｉｃａｌｍｅｃｈａｎｉｃｓＸｕＸｉａｏＭｉｎｇ（ＳｈａｎｇｈａｉＩｎｓｔｉｔｕｔｅｏｆＮｕｃｌｅａｒＲｅｓｅａｒｃｈ，ｔｈｅＣｈｉｎｅｓｅＡ... 详细信息

ＲｅｇｕｌａｒｂｅｈａｖｉｏｒｓｉｎＳＵ（２）ＹａｎｇＭｉｌｓｃｌａｓｉｃａｌｍｅｃｈａｎｉｃｓＸｕＸｉａｏＭｉｎｇ（ＳｈａｎｇｈａｉＩｎｓｔｉｔｕｔｅｏｆＮｕｃｌｅａｒＲｅｓｅａｒｃｈ，ｔｈｅＣｈｉｎｅｓｅＡｃａｄｅｍｙｏｆＳｃｉｅｎｃｅｓ，...

关键词： SU(2) 杨-Mills经典力学正则行为

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Optical Recording Performance of Azo Nickel Chelate Thin Film

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chinese Journal of Lasers 1999年第5期8卷 444-448页

作者： YIN Jinlong WANG Shuangqing GAN Fuxi(shanghai institute of Optics and Fine Mechanics, The chinese academy of sciences,shanghai 201800, chinainstitute of Photographic Chemistry, The chinese academy of sciences,Beijing 100101, china) 中科院上海光学精密机械所上海 201800 中科院感光化学所北京 100101 中科院上海光学精密机械所上海

The absorption, transmission and reflection spectra of spin-coated films of Ni(azo)2(azo nickel chelate) were measured. Because of the intermolecular aggregation, the absorption peak of Ni(azo)2 thin film has a red-shift of about 4o nm with respect to that of it in methanol solution. The fabricated optica disk showed a reflectivity of 48% and its carrier-noise ratio (CNR) was greater than 45 dB when recording with 7. 5 mW laser power at the wavelength of 780nm.

关键词： azo dye optical recording absorption spectra

Ionization and Harmonic Generation of Diatomic Molecular Ion

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chinese Journal of Lasers 1997年第1期B6卷 43-48页

作者： LI Xuexin XU Zhizhan(shanghai institute of Optics and Fine Mechanics,chinese academy of sciences,shanghai 201800) shanghai Inst of Optics and Fine Mechanics Chinese Acad of Sciences Shanghai China

By solving numerically the one-dimensional time-dependent Schrodinger equation, we have studied the effect of internuclear separation of diatomic molecular ion on ionization and high-order harmonic generation. The results reveal that when the internuclear seperation is small, both the ionization and the harmonic generation are weak, with the increasing of the separation, the ionization increases quickly, around some vaiue the ionization reaches a peak which is greater than what it is at small and large distances. Before the ionization reaches its maximum value, there is a reperation range where the harmonic generation is strongest, after the ionization reaches its peak value, the harmonic generation is decreased or eliminated. With the increasing of the separation further, the ionization becomes weak and the harmonic generation recovers to it's high level.

关键词： high-order harmonic generation internuclear separation diatomic molecular ion