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    • 2. 发明授权
    • 파장가변레이저에서의파장선택가능레이저오실레이터
    • KR100451115B1
    • 2004-12-04
    • KR1019970016559
    • 1997-04-30
    • 리카가쿠 겐큐쇼
    • 와다사토시아카가와가즈유키다시로히데오
    • H01S3/10
    • H01S3/1068G02F1/116H01S3/094038H01S3/1625H01S3/1636
    • An object of the present invention is to provide a wavelength selectable laser oscillator in wavelength tunable laser by which the rate of repetitive pulse oscillation of laser beam in a laser resonator can be markedly increased in comparison with that of conventional ones, besides excitation input can be decreased, and in addition, speed-up of wavelength tuning speed can be achieved, whereby flexibility is remarkably elevated in case of practicing the wavelength selectable laser oscillator. The wavelength selectable laser oscillator in wavelength tunable laser comprises a laser resonator composed of opposed mirrors each having a prescribed reflectivity; a wavelength tunable laser medium disposed in the laser resonator and capable of laser oscillation in a wavelength zone of a prescribed range; an acousto-optical crystal disposed in the laser oscillator and to which is inputted the outgoing light from the wavelength tunable laser medium; an acoustic wave inputting means mounted on the acousto-optical crystal and for inputting an acoustic wave to the acousto-optical crystal; an optical element disposed in the laser resonator and for correcting dispersion of the diffracted light outputted from the acousto-optical crystal; and a pulse excitation laser for inputting excitation laser beam into the laser resonator.
    • 本发明的一个目的是提供一种波长可调谐激光器中的波长可选择激光振荡器,通过该激光器可以使激光谐振器中的激光束的重复脉冲振荡的速率与常规激光谐振器相比显着增加, 减少,另外,可以实现波长调谐速度的加速,由此在实施波长可选择的激光振荡器的情况下灵活性显着提高。 波长可调激光器中的波长可选择的激光振荡器包括由各自具有预定反射率的相对的反射镜组成的激光谐振器; 设置在所述激光谐振器中并且能够在规定范围的波长区域中进行激光振荡的波长可调谐激光介质; 设置在所述激光振荡器中的声光晶体,所述声光晶体被输入来自所述波长可调激光介质的出射光; 声波输入装置,其安装在所述声光晶体上并且用于向所述声光晶体输入声波; 设置在所述激光谐振器中并用于校正从所述声光晶体输出的衍射光的色散的光学元件; 以及用于将激励激光束输入到激光谐振器的脉冲激励激光器。 <图像>
    • 6. 发明公开
    • 랩탑(lap-top) 크기의 근접장 증폭을 이용한 고차 조화파 생성장치
    • 使用本地场增强的高谐波发生装置
    • KR1020100043841A
    • 2010-04-29
    • KR1020080103060
    • 2008-10-21
    • 한국과학기술원
    • 김승우진종환김승철박인용
    • H01S3/00B82Y40/00
    • G02F1/353G02F2001/354G02F2203/10H01S3/0092H01S3/1625H01S3/1636
    • PURPOSE: A high order harmonic generation using near-field amplification is provided to generate a high order harmonic wave by forming a fine pattern based on a near field amplification theory without an external light amplifier. CONSTITUTION: A light transmission unit(200) transmits light outputted from a femto second laser generator(100). A fine pattern of a metal thin film has a nano opening. The light from the light transmission unit passes through the fine pattern of the metal thin film. The near field amplification is generated in the nano opening. A gas supply unit(400) supplies inert gas when the light passes through the fine pattern through the light transmission unit. A vacuum chamber(500) receives the fine pattern and the gas supply unit inside the vacuum atmosphere. The fine pattern is made of gold, silver, or aluminum.
    • 目的:提供使用近场放大的高次谐波发生器,通过在没有外部光放大器的情况下,通过形成基于近场放大理论的精细图案来产生高次谐波。 构成:光传输单元(200)发射从毫微微第二激光发生器(100)输出的光。 金属薄膜的精细图案具有纳米开口。 来自光传输单元的光通过金属薄膜的精细图案。 在纳米开口中产生近场放大。 当光通过光传输单元通过精细图案时,气体供应单元(400)供应惰性气体。 真空室(500)在真空气氛中接收精细图案和气体供给单元。 精美图案由金,银或铝制成。