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Journals >
Chinese Journal of Lasers
Contents
1993
Volume: 20 Issue 9
20 Article(s)
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Research Article
A new method for ultrafast imaging in a single shot
[in Chinese], [in Chinese], [in Chinese], and [in Chinese]
A new method for ultrafast imaging in a single shot is reported. The time resolution of the image depends on the duration of laser pulse. A whole process of laser induced damage in organic glass has been recorded by this method.
A new method for ultrafast imaging in a single shot is reported. The time resolution of the image depends on the duration of laser pulse. A whole process of laser induced damage in organic glass has been recorded by this method..
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Chinese Journal of Lasers
Publication Date: Jan. 01, 1900
Vol. 20, Issue 9, 655 (1993)
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Improving the caculatmg speed of laser particle sizer by reducing the number of photosensitive rings
[in Chinese], [in Chinese], [in Chinese], and [in Chinese]
A method of improving the caculating speed of particle size distribution by reducing the number of photosensitive rings is proposed. Through analysis of light energy distribution diffracted by the particle and its derivation, a new formula of size class is introduced and the minimun of photosensitive rings is obtained.
A method of improving the caculating speed of particle size distribution by reducing the number of photosensitive rings is proposed. Through analysis of light energy distribution diffracted by the particle and its derivation, a new formula of size class is introduced and the minimun of photosensitive rings is obtained. Theoretical analysis and numerical simulation demonstrate that the accuracy and measuring range of particle size with 6 rings is almost the same as those with 15 rings. The method is verified through practical measurements for 8 standard latices. It is very suitable for caculating particle size distribution with model dependent..
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Chinese Journal of Lasers
Publication Date: Jan. 01, 1900
Vol. 20, Issue 9, 658 (1993)
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A technology of plasma etched diffractive optical elements
[in Chinese], [in Chinese], and [in Chinese]
The paper investigates the technology to etch photoresist diffractive optical elements with sinuous grooves into its base layer, emphasizing upon the analysis of the relationship between both groove profiles and depthes of the base layer and the photoresist layer based on experiments.
The paper investigates the technology to etch photoresist diffractive optical elements with sinuous grooves into its base layer, emphasizing upon the analysis of the relationship between both groove profiles and depthes of the base layer and the photoresist layer based on experiments..
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Chinese Journal of Lasers
Publication Date: Jan. 01, 1900
Vol. 20, Issue 9, 663 (1993)
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Switch characteristic and logic operation using a single nonlinear interference filter (NIF)
[in Chinese], [in Chinese], [in Chinese], [in Chinese], and [in Chinese]
With a NIF as optical bistable device, the optical switch and the logical function are demonstrated.
With a NIF as optical bistable device, the optical switch and the logical function are demonstrated..
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Chinese Journal of Lasers
Publication Date: Jan. 01, 1900
Vol. 20, Issue 9, 671 (1993)
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Experimental study of recording binary phase-only filters using liquid crystal light valve
[in Chinese], [in Chinese], [in Chinese], [in Chinese], and [in Chinese]
In this paper, experimental study using liquid crystal light valve to record binary phase-only filters is reported. The results show that liquid crystal light valve has high efficient optical reconstruction when used as BPOF. Also given is a simple technique to generate binary phase-only filters with CCD camera, PC/XT
In this paper, experimental study using liquid crystal light valve to record binary phase-only filters is reported. The results show that liquid crystal light valve has high efficient optical reconstruction when used as BPOF. Also given is a simple technique to generate binary phase-only filters with CCD camera, PC/XT computer and photographic film..
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Chinese Journal of Lasers
Publication Date: Jan. 01, 1900
Vol. 20, Issue 9, 674 (1993)
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Real-time color debugging pseudocolor encoding on phase objects
[in Chinese], [in Chinese], and [in Chinese]
A real- time color debugging pseudocolor encoding for phase objects is realized when an phase object is filtered and is written into a liquid crystal light valve then read out by white light. Its principle is discussed using a simplified hybrid field effect mode of liquid crystal light valve. Some typical pseudocolor e
A real- time color debugging pseudocolor encoding for phase objects is realized when an phase object is filtered and is written into a liquid crystal light valve then read out by white light. Its principle is discussed using a simplified hybrid field effect mode of liquid crystal light valve. Some typical pseudocolor encoding results are presented..
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Chinese Journal of Lasers
Publication Date: Jan. 01, 1900
Vol. 20, Issue 9, 701 (1993)
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Dynamic speckle of gaussian-beam illumination with a single-lens geometry
[in Chinese]
.
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Chinese Journal of Lasers
Publication Date: Jan. 01, 1900
Vol. 20, Issue 9, 710 (1993)
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Biomedical Photonics and Laser Medicine
Induction of parthenogenesis of silkworm (Bombyx mori) by laser Irradiation
[in Chinese], [in Chinese], [in Chinese], and [in Chinese]
The effect of coloured egg by race, dosage and temperatur on the survival rate was studied. The results showed the laser-induced-colored egg rate reaches 55%. This experiment showed that the newly hatched larvae were all female from the eggs of parthenogensis of silkworm by laser Irradiation. Compared with their parent
The effect of coloured egg by race, dosage and temperatur on the survival rate was studied. The results showed the laser-induced-colored egg rate reaches 55%. This experiment showed that the newly hatched larvae were all female from the eggs of parthenogensis of silkworm by laser Irradiation. Compared with their parents, the offsprings exhited sluggish larva grow-up, the cocoon quality improved and the deformed silkworms were faw in the rearing tests..
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Chinese Journal of Lasers
Publication Date: Jan. 01, 1900
Vol. 20, Issue 9, 715 (1993)
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The mutation of fish breed by laser irradiation
[in Chinese], [in Chinese], [in Chinese], [in Chinese], [in Chinese], and [in Chinese]
The research results about fish breed using laser irradiation was reported. A new breed, two tails brocaded carp-China colour carp was cultivated successfully. New it aready inherite to third generation, but its form was not change.
The research results about fish breed using laser irradiation was reported. A new breed, two tails brocaded carp-China colour carp was cultivated successfully. New it aready inherite to third generation, but its form was not change..
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Chinese Journal of Lasers
Publication Date: Jan. 01, 1900
Vol. 20, Issue 9, 718 (1993)
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Holography and Information Processing
Design of multi-focus zone lens
[in Chinese], [in Chinese], and [in Chinese]
This paper proposes a concept and its design procedure for zone lens, a binary optics element, which has multiple-focus by using simulated annealing method. Which can provide some specific light fielt distribution, with such characteristiocs as stable perfarmances, miniatunzation and practical operasility.
This paper proposes a concept and its design procedure for zone lens, a binary optics element, which has multiple-focus by using simulated annealing method. Which can provide some specific light fielt distribution, with such characteristiocs as stable perfarmances, miniatunzation and practical operasility..
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Chinese Journal of Lasers
Publication Date: Jan. 01, 1900
Vol. 20, Issue 9, 667 (1993)
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A new method to extrect identical and different parts of two images
[in Chinese], and [in Chinese]
A new method to extract identical and different parts of two images is proposed. Two monchromatic beams modified by the processed images interfere to form a hologram from which the identical or different parts are reconstructed. In our method, multiplication of images and the Stokes principle are applied. The optical s
A new method to extract identical and different parts of two images is proposed. Two monchromatic beams modified by the processed images interfere to form a hologram from which the identical or different parts are reconstructed. In our method, multiplication of images and the Stokes principle are applied. The optical setup is simple and easy to align. Real-time processing can be achieved if photorefractive material is used. Experimental results are presented..
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Chinese Journal of Lasers
Publication Date: Jan. 01, 1900
Vol. 20, Issue 9, 696 (1993)
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Dynamic laser light scattering experimental system for liquid surface character study
[in Chinese], [in Chinese], [in Chinese], [in Chinese], and [in Chinese]
A dynamic laser light scatering experimental system is set up which is uses the laser as a probe with the advantages of noncontact and no pertunation for the liquid surface and the measurement results are in good agreement with the known results for the conventional simple liquids and low surface tension systems.
A dynamic laser light scatering experimental system is set up which is uses the laser as a probe with the advantages of noncontact and no pertunation for the liquid surface and the measurement results are in good agreement with the known results for the conventional simple liquids and low surface tension systems..
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Chinese Journal of Lasers
Publication Date: Jan. 01, 1900
Vol. 20, Issue 9, 706 (1993)
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Laser Physics
Mechanism of single longitudinal mode operation of semiconductor diode laser with an external cavity
[in Chinese], [in Chinese], and [in Chinese]
This paper, presents the mechanism of the mode interaction for single longitudinal mode operation of a diode laser with an external cavity, based on the rate equation approach. Due to the coupling term of the four-wave mixing, the mode interaction has a symmetric effect on the submodes, inducing the gain suppression on
This paper, presents the mechanism of the mode interaction for single longitudinal mode operation of a diode laser with an external cavity, based on the rate equation approach. Due to the coupling term of the four-wave mixing, the mode interaction has a symmetric effect on the submodes, inducing the gain suppression on them..
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Chinese Journal of Lasers
Publication Date: Jan. 01, 1900
Vol. 20, Issue 9, 641 (1993)
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Experimental study on solid laser resonator with fundamental mode and stable-power output
[in Chinese], [in Chinese], [in Chinese], [in Chinese], and [in Chinese]
In this paper, the dependences of dynamic stability, mode property and character of output power on the dynamic factor for a solid laser resonater with a thermal lens is analyzed, and the conditions of stable-mode output and stable-power output under general case are also given. Experimentally the high TEM00 power outp
In this paper, the dependences of dynamic stability, mode property and character of output power on the dynamic factor for a solid laser resonater with a thermal lens is analyzed, and the conditions of stable-mode output and stable-power output under general case are also given. Experimentally the high TEM00 power output of CW Nd : YAG laser operating in the stable-power state is obtained for the first time..
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Chinese Journal of Lasers
Publication Date: Jan. 01, 1900
Vol. 20, Issue 9, 646 (1993)
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Characteristics of ring dye lasers coupled with self-pumped phase conjugate mirrors
[in Chinese], [in Chinese], and [in Chinese]
This paper describes the characteristics of wavelength scanning of a ring dye laser coupled with a SPPCM and the reflectivity under an external field. Experiments demonstrats that the wavelength self-scanning rate and the direction can be controlled by adding an external field if it scans initially towards the shorter
This paper describes the characteristics of wavelength scanning of a ring dye laser coupled with a SPPCM and the reflectivity under an external field. Experiments demonstrats that the wavelength self-scanning rate and the direction can be controlled by adding an external field if it scans initially towards the shorter wavelength. It is also found that the reflectivity of SPPCM is increased with the wavelength scanning towards the longer wavelengths..
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Chinese Journal of Lasers
Publication Date: Jan. 01, 1900
Vol. 20, Issue 9, 650 (1993)
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Theory of SRS of high power laser pulse train
[in Chinese], [in Chinese], [in Chinese], and [in Chinese]
The theory of the stimulated Raman scattering (SRS) of the pulse train of the high power laser is discussed. The gain expression of the Stokes light pulse is given, our results show that the memory effect is very important in high gain region and the Stokes light exists in the lead edge of pulses.
The theory of the stimulated Raman scattering (SRS) of the pulse train of the high power laser is discussed. The gain expression of the Stokes light pulse is given, our results show that the memory effect is very important in high gain region and the Stokes light exists in the lead edge of pulses..
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Chinese Journal of Lasers
Publication Date: Jan. 01, 1900
Vol. 20, Issue 9, 678 (1993)
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Theoretical weighted oscillator strengths and radiative transition probabilities of Li-like Cu ion
[in Chinese], and [in Chinese]
Theoretical weighted oscillator strengths and radiative transition probabilities for 1S2 nl(n=2-6,l=0-5) configurations in Li-like Cu ion are computed with the aid of the HFR program developed by R. D. Cowan. The ab initio energy paramaters are optimised on the basis of experimental energy levels. The excellent agreeme
Theoretical weighted oscillator strengths and radiative transition probabilities for 1S2 nl(n=2-6,l=0-5) configurations in Li-like Cu ion are computed with the aid of the HFR program developed by R. D. Cowan. The ab initio energy paramaters are optimised on the basis of experimental energy levels. The excellent agreement are obtained between the calculated wavelenthgths and the measured ones..
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Chinese Journal of Lasers
Publication Date: Jan. 01, 1900
Vol. 20, Issue 9, 682 (1993)
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Synthesis of Fe/C/Si ultrafine particles by laser induced vapor-phase reaction method
[in Chinese], [in Chinese], [in Chinese], [in Chinese], [in Chinese], and [in Chinese]
Fe/C/Si ultrafine particles (UFP) were synthesized by laser induced vapor-phase reaction method with a 150 W CW CO2 laser as light source and SiH4, C2H4 and Fe(CO)5 as rawmaterials. The instantaneous temperature of the reaction flame was measured by a SCIT infrared thermometer. The effects of processing parameters on t
Fe/C/Si ultrafine particles (UFP) were synthesized by laser induced vapor-phase reaction method with a 150 W CW CO2 laser as light source and SiH4, C2H4 and Fe(CO)5 as rawmaterials. The instantaneous temperature of the reaction flame was measured by a SCIT infrared thermometer. The effects of processing parameters on this temperature have been studied. Detailed characterization of samples is presented, including chemical analysis, FT-IR, TEM and XRD results..
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Chinese Journal of Lasers
Publication Date: Jan. 01, 1900
Vol. 20, Issue 9, 688 (1993)
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Study of structure and optical properties of diamondlike carbon films
[in Chinese], [in Chinese], and [in Chinese]
DLC films have been fabricated by means of PCVD on various substrate. The structure of DLC films have been investigated by Raman spectra and IR spectra, and their optical absorbtance and IR transmittance have also been measured and discussed.
DLC films have been fabricated by means of PCVD on various substrate. The structure of DLC films have been investigated by Raman spectra and IR spectra, and their optical absorbtance and IR transmittance have also been measured and discussed..
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Chinese Journal of Lasers
Publication Date: Jan. 01, 1900
Vol. 20, Issue 9, 693 (1993)
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Titanium doped sapphire laser pumped by pulsed laser
[in Chinese], [in Chinese], [in Chinese], and [in Chinese]
Starting from rate equations, output characteristics of titanium doped sapphire laser pumped by pulsed laser are studied by digital calculation. Titanium sapphire laser pumped by quasi-CW frequency doubled Nd:YAG laser is studied experimentally. The experimental results agree with theoretical calculation.
Starting from rate equations, output characteristics of titanium doped sapphire laser pumped by pulsed laser are studied by digital calculation. Titanium sapphire laser pumped by quasi-CW frequency doubled Nd:YAG laser is studied experimentally. The experimental results agree with theoretical calculation..
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Chinese Journal of Lasers
Publication Date: Jan. 01, 1900
Vol. 20, Issue 9, 703 (1993)
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Holography and Information Processing
Laser Physics