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Acta Optica Sinica
Contents
1989
Volume: 9 Issue 4
17 Article(s)
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Research Article
[in Chinese]
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Acta Optica Sinica
Publication Date: Jan. 01, 1900
Vol. 9, Issue 4, 1 (1989)
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Holography
Reconstruction of 3-D refractive index fields by an improved Conjugate-gradient iterative method
QAO YIQING, and DING HANQUAN
The reconstruction precision of an improved Conjugate-gradient iterative method, the effects of increased input data error and limited total viewing angle have been studied based on the knowledge of refractive index fields aid of computer simulations. As an example, the flame temperature fields were reconstructed, and
The reconstruction precision of an improved Conjugate-gradient iterative method, the effects of increased input data error and limited total viewing angle have been studied based on the knowledge of refractive index fields aid of computer simulations. As an example, the flame temperature fields were reconstructed, and the results are compared with thermocouple measurements..
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Acta Optica Sinica
Publication Date: Jan. 01, 1900
Vol. 9, Issue 4, 357 (1989)
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Experimental study of one-step rainbow holography with synthesized slitlike
ZHANG SENRU, LIN SHUZHUANG, and DEN SIAOYIAN
In this paper the limitation of the slit width formula of one-step rainbow holography with a synthesized slitlike, W = 2λf//ΔS, is described. Then the improved schemes, which can increase the region of object-image magnification in two-lens imaging system and can reconstruote an original image, are discussed and demons
In this paper the limitation of the slit width formula of one-step rainbow holography with a synthesized slitlike, W = 2λf//ΔS, is described. Then the improved schemes, which can increase the region of object-image magnification in two-lens imaging system and can reconstruote an original image, are discussed and demonstrated experimentally. Consequently, application flexibity of the technique is extended..
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Acta Optica Sinica
Publication Date: Jan. 01, 1900
Vol. 9, Issue 4, 364 (1989)
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Instrumentation, Measurement and Metrology
Relations between measurement and computer program of stray light in optical system
WANG HAIMING, XIANG CAIXIN, and WANG SHURONG
Based on the diffraction imaging theory, we developed an analytical formula of Verling Glare Index of optical system by "balck spot" method. This formula consists of both the construction performances of the system to be measured and the testing conditions. We formulated a computer program for computing the V
Based on the diffraction imaging theory, we developed an analytical formula of Verling Glare Index of optical system by "balck spot" method. This formula consists of both the construction performances of the system to be measured and the testing conditions. We formulated a computer program for computing the VGI. The computed VGI is almost the same as measured oue for the same optical system..
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Acta Optica Sinica
Publication Date: Jan. 01, 1900
Vol. 9, Issue 4, 321 (1989)
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A study of reflectivity-measurement in far ultraviolet and vacuum ultraviolet
ZHUANG DAKUI, SHI YIFAN, LIU YASHU, YANG TIAKLI, and Liu HUA
A new method for measuring reflectivity in the spectum of far ultraviolet and vacuum ultraviolet is described in this paper. The instrument designed features an optical system, a look-in amplifying detection technique in connexion with a data processing computer. The accuracy is better than ±5×10-3 and the pr
A new method for measuring reflectivity in the spectum of far ultraviolet and vacuum ultraviolet is described in this paper. The instrument designed features an optical system, a look-in amplifying detection technique in connexion with a data processing computer. The accuracy is better than ±5×10-3 and the precision better than ±5×10-4..
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Acta Optica Sinica
Publication Date: Jan. 01, 1900
Vol. 9, Issue 4, 327 (1989)
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Materials
Two-electron properties of DV X
α
and energy levels of MgF
2
Ni
2+
ZHANG BING, LUYIQUN, and ZHU JIKANG
Two-electron calculating method of DV xα is used to calculate two-electron integrals and singlet-triplet splittings of MgF2:Ni2+ crystal. The energy levels of crystal field are obtained.
Two-electron calculating method of DV xα is used to calculate two-electron integrals and singlet-triplet splittings of MgF2:Ni2+ crystal. The energy levels of crystal field are obtained..
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Acta Optica Sinica
Publication Date: Jan. 01, 1900
Vol. 9, Issue 4, 341 (1989)
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Enhancement of LiF:F
3
+
centers with N
2
laser irradiation
GU HONGEN, QI LAN, WAN LIANGFENG, and Guo HONGSHI
High density F3+ centers can be produced efficiently by irradiating the colored LiF crystals with nitrogen laser (337 nm) at liquid-nitrogen temperature. The experimental procedure, speotroscopio properties and formative mechanism of the second creation of F3+ centers in the crystals are described in great detail.
High density F3+ centers can be produced efficiently by irradiating the colored LiF crystals with nitrogen laser (337 nm) at liquid-nitrogen temperature. The experimental procedure, speotroscopio properties and formative mechanism of the second creation of F3+ centers in the crystals are described in great detail..
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Acta Optica Sinica
Publication Date: Jan. 01, 1900
Vol. 9, Issue 4, 346 (1989)
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Improvement of experimental setup of interferometric method for measuring electro-optic coefficients of crystals
YINXIN
A simple, quick, and highly sensitive method for measuring the electro-optio coefficients of crystals has been suggested. This method is based on compensating the change of optical path due to the electro-optic effects of crystals with that due to th ant-piezoelectric effect of a piezoaleobrio crystal on a Twyman inter
A simple, quick, and highly sensitive method for measuring the electro-optio coefficients of crystals has been suggested. This method is based on compensating the change of optical path due to the electro-optic effects of crystals with that due to th ant-piezoelectric effect of a piezoaleobrio crystal on a Twyman interferometsr..
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Acta Optica Sinica
Publication Date: Jan. 01, 1900
Vol. 9, Issue 4, 353 (1989)
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Nonlinear Optics
Optical second-harmornic generation by reflection of incident beam at metal surfaces (Ⅰ)
ZHENG WANQUAN, WANG GONGMING, WANG WENCHENG, and ZHANG ZHIMING
Using the phenomenologieal parameters "a" and "b" introduced by Endniok and Stern to describe the surface cruuents,we have derived the expressions for the optical second-harmonic generation from metal surfaces in specular direction. It is shown that the harmonic signal as a function of the polarizat
Using the phenomenologieal parameters "a" and "b" introduced by Endniok and Stern to describe the surface cruuents,we have derived the expressions for the optical second-harmonic generation from metal surfaces in specular direction. It is shown that the harmonic signal as a function of the polarization state of the incident beam will give direct information about the parameter "a", so the value of this parameter could be determined with precision..
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Acta Optica Sinica
Publication Date: Jan. 01, 1900
Vol. 9, Issue 4, 289 (1989)
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Antibunching effect of resonance fluorescence in a two-atom system
GU MIN, and TAN WEIHAN
By using the recoupled wave functions in a two-atom system[1], the second order correlation functions of a two-atom system are solved in this paper. And the influences of the stimulated emission between atoms, the transverse and longitudinal relaxations, and the frequency detuning on the photon antibunohing are numeric
By using the recoupled wave functions in a two-atom system[1], the second order correlation functions of a two-atom system are solved in this paper. And the influences of the stimulated emission between atoms, the transverse and longitudinal relaxations, and the frequency detuning on the photon antibunohing are numerically discussed. If T1》T2, then the antibunohing will be reduced..
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Acta Optica Sinica
Publication Date: Jan. 01, 1900
Vol. 9, Issue 4, 296 (1989)
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Physical Optics
Statistical analysis of shearing speckle interferometry
CHEN JIABI, ZHOU WEIZHENG, and PEI MIN
The imaging process of shearing speeklegram, its spectrum distribution and formation of gringes created by whole-field filtering are analysed by means of stati-sbioal optics in this paper. We find that the fringe distribution is related not only to the derivation of 3-D displacement but also to the amount of in-plane d
The imaging process of shearing speeklegram, its spectrum distribution and formation of gringes created by whole-field filtering are analysed by means of stati-sbioal optics in this paper. We find that the fringe distribution is related not only to the derivation of 3-D displacement but also to the amount of in-plane displacement. Accordingly the factors influencing the quality of fringes are discussed and experimental demonstration is given..
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Acta Optica Sinica
Publication Date: Jan. 01, 1900
Vol. 9, Issue 4, 333 (1989)
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Rapid Communications
Normal astigmatic character of astigmatic holographic element
YANG XUELING
Possibility of making an optical element of astigmatic character (astigmatic holographic element) by holographic method is analyzed theoretically. The astigmatic character in the space normal direction is researched in detail. The experimental results are given. The advantages are easy to operate and ecomomy.
Possibility of making an optical element of astigmatic character (astigmatic holographic element) by holographic method is analyzed theoretically. The astigmatic character in the space normal direction is researched in detail. The experimental results are given. The advantages are easy to operate and ecomomy..
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Acta Optica Sinica
Publication Date: Jan. 01, 1900
Vol. 9, Issue 4, 370 (1989)
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Absolute calibration of VUV intensity using branch ratio
WEI LEHAN, Wu XIAOLAN, Fu JIKAI, and WANG SHUYA
The absolute sensitivity of VUV gracing incidence VUV monoohromator was calibrated on tokamak using branch ratio. The calibrated range is from 15A-1640A. The technical problems are discussed.
The absolute sensitivity of VUV gracing incidence VUV monoohromator was calibrated on tokamak using branch ratio. The calibrated range is from 15A-1640A. The technical problems are discussed..
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Acta Optica Sinica
Publication Date: Jan. 01, 1900
Vol. 9, Issue 4, 375 (1989)
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High-gem LiNbO
3
optical parametric oscillator
HUANG WBIPING, XIE SHENGWU, JIANG XIUMING, WANG PBIJUN, and CHEN YINGLI
We report in this paper a high-gain tuned LiNbO3 optical parametric oscillator pumped by a Q-switched ruby laser. The maximum output energy and conversion efficiency is as high as 50mJ/pulse aud 19 % respectively. The oscillator is continuously tunable from 1.1444μm to 1.7652μm.
We report in this paper a high-gain tuned LiNbO3 optical parametric oscillator pumped by a Q-switched ruby laser. The maximum output energy and conversion efficiency is as high as 50mJ/pulse aud 19 % respectively. The oscillator is continuously tunable from 1.1444μm to 1.7652μm..
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Acta Optica Sinica
Publication Date: Jan. 01, 1900
Vol. 9, Issue 4, 380 (1989)
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Spectroscopy
Investigation of resonance fluorescence in intense laser field via dressed atom approach
LI SHIFANG, and LIN FUCHENG
The resonance fluorescence of an atom in an intense laser field was investigated via dressed atom approach. The steady st te solution of the master ,equation was obtained, in which the damping of the photon in laser mode was compensated by introducing a exciting term in the master equation. The shape and intensity of t
The resonance fluorescence of an atom in an intense laser field was investigated via dressed atom approach. The steady st te solution of the master ,equation was obtained, in which the damping of the photon in laser mode was compensated by introducing a exciting term in the master equation. The shape and intensity of the resonance fluoresoenoe was given. Some physios means was discussed..
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Acta Optica Sinica
Publication Date: Jan. 01, 1900
Vol. 9, Issue 4, 302 (1989)
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UV emission spectrum of XeO
*
and XeS
*
XU JIE
The quenching kinetics of Xe(6p[1/2]0) and Xe(6p[3/2]s) atoms with oxygen compound have been studied. The reaction of Xe(6p) excited-states atoms with N2O and OCS generated significant UV emission of XeO* and XeS* with intensity maxima at 234 and 227 nm respectively. The mechanism for fluorescence emission is discussed
The quenching kinetics of Xe(6p[1/2]0) and Xe(6p[3/2]s) atoms with oxygen compound have been studied. The reaction of Xe(6p) excited-states atoms with N2O and OCS generated significant UV emission of XeO* and XeS* with intensity maxima at 234 and 227 nm respectively. The mechanism for fluorescence emission is discussed..
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Acta Optica Sinica
Publication Date: Jan. 01, 1900
Vol. 9, Issue 4, 310 (1989)
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Study on resonant multiphoton ionization spectrum of atomic iodine
ZHU LING, CHEN WEI, WANG PBINAN, and LI FUMING
I(5p2p3/20) and I*(5p 2P1/20) atoms have been detected by resonant(3+2)and(4+l) multiphoton ionization using tunable dye laser (4600-5000A).The iodine atoms are generated by laser dissociation of I molecules. 12 atomic transitions are observed in the laser wavelength region, among which the (4+1) multiphoton transition
I(5p2p3/20) and I*(5p 2P1/20) atoms have been detected by resonant(3+2)and(4+l) multiphoton ionization using tunable dye laser (4600-5000A).The iodine atoms are generated by laser dissociation of I molecules. 12 atomic transitions are observed in the laser wavelength region, among which the (4+1) multiphoton transitions are observed for the first time..
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Acta Optica Sinica
Publication Date: Jan. 01, 1900
Vol. 9, Issue 4, 317 (1989)
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