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| 1 | Study of the Retracing Behavior of the Phase-Matching Angle in Second Harmonic Generation显示文摘The retracing behavior of the phase-matching angle(RBPA)in many nonlinear optical crystals for second harmonic generation(SHG)has been demonstrated by calculation.The generality of this phenomenon is successfully explained by a theoretical analysis based on classical optics.The wavelengths of the fundamental waves and phasematching angles for describing the RBPA of eight kinds of crystals are presented.Furthermore,we point out that RBPA exists generally in both uniaxial and biaxial crystals for both type Ⅰ and type Ⅱ SHG. | LIU Xiang DENG Daoqun WU Ling-an XU Zuyan CHEN Chuangtian WU Baichang | 1994 | Chinese Physics Letters1994，11，5： | 1 |
| 2 | Design and synthesis of an ultraviolet transparent nonlinear optical crystal Sr2Be2B2O7显示文摘 | CHEN Chuangtian WANG Yebin WU Baichang | 1995 | Nature1995，373，： | 1 |
| 3 | Efficient Generation of Deep Ultraviolet Radiation Using LiB_(3)O_(5) Crystal显示文摘Efficient generation of deep ultraviolet radiation at wavelength of less than 0.20 μm obtained by using LiB_(3)O_(5) crystal is reported.High power radiation at 0.1914μm has been produced via sum-frequency-mixing of two waves with wavelengths of 0.2128 and 1.9071μm in LiB_(3)O_(5) crystal.An average output power of about 2.0mW and a conversion efficiency of 8%have been achieved. | XIE Fali WU Baichang MAO Hongwei CHEN Chuangtian | 1992 | Chinese Physics Letters1992，9，5： | 1 |
| 4 | TUNABLE HIGH-POWER BaB_(2)O_(4) OPTICAL PARAMETRIC OSCILLATOR PUMPED AT 355nm显示文摘We report the operation of aβ-BaB_(2)O_(4)(BBO)optical parametric oscillator(OPO)broadly tunable in the visible and the near infrared.Quantum efficiency of 22.7%for the signal and 34.1%for the idler corresponding to the total energy conversion efficiency of 25.9%has been achieved.The maximum average output power and the maximum output energy reached 220m W and 22rnJ/pulse,respectively.By changing the matching angle of the OPO,the output wavelength was continuously scanned throughout 425-2144nm. | XU Zuyan DENG Daoqun WANG Yunping ZHENG Wanhua LIU Xiang WU Baichang CHEN Chuangtian | 1990 | Chinese Physics Letters1990，7，9： | 0 |
| 5 | PICOSECOND NARROW-BAND SUPERLUMINESCENT OPTICAL PARAMETRIC SELF-AMPLIFICATION IN β-BaB_(2)O_(4) CRYSTAL PUMPED AT 354.7nm显示文摘A tunable picosecond narrow band β-BaB_(2)O_(4)(BBO)superluminescent optical parametric self-amplification(OPSA)pumped by the third harmonic of an actively-passively mode-locked Nd:YAG laser has been demonstrated.The output wavelength of the OPSA was tunable from 406.6nm to 2777nm.The maximum energy conversion efficiency was 11%.The maximum peak power of the visible output was as high as 13MW. | DENG Daoqun XU Zuyan WANG Yunping ZHENG Wanhua LIU Xiang WU Baichang CHEN Chuangtian | 1990 | Chinese Physics Letters1990，7，11： | 0 |
| 6 | Studies on the Character of Wide Band Frequency Doubling in LiB_(3)O_(5) Crystal显示文摘The angular acceptance and the spectral acceptance about the retracing point of phase-matching angles for type I second-harmonic generation in LiB_(3)O_(5)(LBO)crystal have been measured.The exact wavelength in retracing point is found to be 1.303μm,and the spectral acceptance bandwidth and angular acceptance width are about 115nm-cm and 11mrad-cm respectively.A possible application of LBO crystal in direct frequency doubling of femtosecond laser pulse has been predicted with theory. | XIE Fali MAO Hongwei WU Baichang CHEN Chuangtian | 1993 | Chinese Physics Letters1993，10，3： | 0 |
| 7 | NONLINEAR OPTICAL PROPERTY OF para-DISUBSTITUTED BENZYLIDENE-ANILINE DERIVATIVES显示文摘Forty para-disubstituted benzylidene-aniline derivatives weresynthesized,and their second harmonic generation(SHG)efficiency was measuredby the Kurtz powder technique.The effect of the electronic property and theposition of the substituents on powder SHG efficiency was studied. | Daoyu LIU Chaoyang DAI Jingui QIN Xiaoping GONG (Department of Chemistry,Wuhan University,Wuhan 430072) Chuangtian CHEN Baichang WU (Fujian Institute of Research on the Structure of Matter,Chinese Academy of Science,Fuzhou 350002) | 1990 | Chinese Chemical Letters1990，1，3： | 0 |
| 8 | Diode pumped Nd: YVO_4 laser at 671 nm with a type-Ⅱ noncritical phase-matched LBO显示文摘A diode pumped intracavity frequency-doubled Nd: YVO4 laser emitting at 671 nm with a type- Ⅱ noncritical phase-matched LBO crystal is reported. A maximum output power at 671 nm of 404 mW was obtained under an incident pump power of 5.16 W, with an optical-to-optical conversion efficiency up to 7.8%. The output power fluctuates less than 5% while the temperature change of the LBO crystal is maintained at ± 0.5℃ at the phase-matched temperature. | ZHANG Hengli , HOU Wei , WANG Jianming , XU Yao , XU Zuyan WU Baichang CHEN ChuangtianLaboratory of Optical Physics , Institute of Physics , Chinese Academy of Sciences , Beijing 100080, China Fujian Institute of Research on the Structure of Matter , Chinese Academy of Sciences , Fuzhou 350002, China | 1999 | Chinese Science Bulletin1999，44，15： | 0 |
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