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RSS1991 Vol. 15, No. 5
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1991, 15(5): 257-260.
[Abstract]
[PDF 507KB]
Abstract:
The factors of influence the output characteristics of square wave modulated RF excited CO2 laser are experimentally investigated.The modulated output peak power of 500W has been obtained.
The factors of influence the output characteristics of square wave modulated RF excited CO2 laser are experimentally investigated.The modulated output peak power of 500W has been obtained.
1991, 15(5): 261-265.
Abstract:
Characteristic of radiation in dye mixtures R6G and CV pumped by 532nm YAG laser
Characteristic of radiation in dye mixtures R6G and CV pumped by 532nm YAG laser
1991, 15(5): 266-270.
Abstract:
A Littman's laser resonance with capillary is presented in this paper.Comparing to conventional laser resonance,this Littman's laser resonance with capillary is superior in output bandwidth,output mode and output power.The design method of the laser resonance is also discussed.
A Littman's laser resonance with capillary is presented in this paper.Comparing to conventional laser resonance,this Littman's laser resonance with capillary is superior in output bandwidth,output mode and output power.The design method of the laser resonance is also discussed.
1991, 15(5): 271-273.
Abstract:
In the present paper,diamondlike carbon films have been formed by rfPCVD from C7H8 gas.The optical properties of DLC films are investigated,the experiment results show that DLC films are suitable for antireflection coatings of laser window.
In the present paper,diamondlike carbon films have been formed by rfPCVD from C7H8 gas.The optical properties of DLC films are investigated,the experiment results show that DLC films are suitable for antireflection coatings of laser window.
1991, 15(5): 274-277.
Abstract:
A picosecond single pulse is enhanced by a shortleg generative amplifier to drive a juxtaposition silicon switch with long relaxation time.With the optoconductive switch,a kV pulse with fast rise and fall time,different pulse width is obtained.After all,two single pulses accuracy synchronized are obtained from a train of mode-locked pulses.
A picosecond single pulse is enhanced by a shortleg generative amplifier to drive a juxtaposition silicon switch with long relaxation time.With the optoconductive switch,a kV pulse with fast rise and fall time,different pulse width is obtained.After all,two single pulses accuracy synchronized are obtained from a train of mode-locked pulses.
1991, 15(5): 278-283.
Abstract:
This paper reports the selection of the measurement spots and animal radiant exposure with the computer procedure control,under the outdoor condition,and the injury and safety bounds derived in terms of the double-track method of dosage measurements and animal experiments.The results of application show that the bounds presented in this paper are accurate.
This paper reports the selection of the measurement spots and animal radiant exposure with the computer procedure control,under the outdoor condition,and the injury and safety bounds derived in terms of the double-track method of dosage measurements and animal experiments.The results of application show that the bounds presented in this paper are accurate.
1991, 15(5): 284-289.
Abstract:
This atticle reviews recent advances in deposition technique of laser-assisted solid state thin films.The basic principles, deposition systems and laser sources of pulsed laser evaporation deposition(PLED) and laser-induced chemical vapor deposition(LCVD) are simply introduce.Applications of this technique in preparing the thin films,such as high-T.superconductive films,metallic films,semi-conductive films and insulation films,used in microelectronic elements are thoroughly presented.
This atticle reviews recent advances in deposition technique of laser-assisted solid state thin films.The basic principles, deposition systems and laser sources of pulsed laser evaporation deposition(PLED) and laser-induced chemical vapor deposition(LCVD) are simply introduce.Applications of this technique in preparing the thin films,such as high-T.superconductive films,metallic films,semi-conductive films and insulation films,used in microelectronic elements are thoroughly presented.
1991, 15(5): 290-294.
Abstract:
A new gas sensing optical fibre material (SnO2:ZnO) is discovered.The experiment of methanol is made.The best result is obtained when the weight factor is 1:1.This is a available gas sensing material.
A new gas sensing optical fibre material (SnO2:ZnO) is discovered.The experiment of methanol is made.The best result is obtained when the weight factor is 1:1.This is a available gas sensing material.
1991, 15(5): 294-297.
Abstract:
The article presents our experimental procedure which a Ti-C alloy layer is formed in 20# steel surface with a laser scanning at the variable scanning speed.The characteristics of the alloy layer, for example microstructure,phase morphology,hardness and resistance to abrasion,are examined and analyzed.The results show that the microhardness and resistance to abrasion of the alloy layer are remarkably improved,the laser scanning speed greatly influences the microstructure and its features.
The article presents our experimental procedure which a Ti-C alloy layer is formed in 20# steel surface with a laser scanning at the variable scanning speed.The characteristics of the alloy layer, for example microstructure,phase morphology,hardness and resistance to abrasion,are examined and analyzed.The results show that the microhardness and resistance to abrasion of the alloy layer are remarkably improved,the laser scanning speed greatly influences the microstructure and its features.
1991, 15(5): 298-302.
Abstract:
The recent advances in the area of laser damage researches are briefly reviewed,and the trend in the future is pointed out.
The recent advances in the area of laser damage researches are briefly reviewed,and the trend in the future is pointed out.
1991, 15(5): 303-307.
Abstract:
The paper introduces the experimental arrangement, method and research results of injury threshold of cornea and skin irradiated with 266nm or 355nm laser light.
The paper introduces the experimental arrangement, method and research results of injury threshold of cornea and skin irradiated with 266nm or 355nm laser light.
1991, 15(5): 308-311.
Abstract:
A new OE-HOE system has been worked out,with which the large-aperture collimated waves,large-aperture convergent waves,astigmatic waves,or wave beam with cross-section of any aperture shape can be produced.The principle of the system and its applications are described.
A new OE-HOE system has been worked out,with which the large-aperture collimated waves,large-aperture convergent waves,astigmatic waves,or wave beam with cross-section of any aperture shape can be produced.The principle of the system and its applications are described.
1991, 15(5): 312-314.
Abstract:
A set of measurement printer for laser ranging test has been developed by using a PC-1500 pocket computer.The operation principles of software and hardware interface of the printer are introduced.
A set of measurement printer for laser ranging test has been developed by using a PC-1500 pocket computer.The operation principles of software and hardware interface of the printer are introduced.
1991, 15(5): 315-316.
Abstract:
A new method for adjusting grating cavity by means of laser opto-galvanic effect is presented.
A new method for adjusting grating cavity by means of laser opto-galvanic effect is presented.
1991, 15(5): 317-320.
Abstract:
The dependence of splitting angle between o and e light on the orientation of optical axis and cut angle of the bireflective polarization beam-splitting prism is discussed,A new kind of single unit bireflective beam-splitting polarization prism which can give a larger splitting angle is presented in this paper.
The dependence of splitting angle between o and e light on the orientation of optical axis and cut angle of the bireflective polarization beam-splitting prism is discussed,A new kind of single unit bireflective beam-splitting polarization prism which can give a larger splitting angle is presented in this paper.
