发明名称 |
SHG autocorrelator |
摘要 |
An SHG autocorrelator for use in measuring the duration of an ultrashort pulse of light includes in one embodiment a thin pellicle beamsplitter for splitting the pulse of light into first and second beams, a stationary optical delay disposed along the path of the first beam, a movable optical delay disposed along the path of the second beam, a thin SHG crystal, a concave mirror for bringing the first and second beams to focus into the SHG crystal, a photodetector for detecting light emitted from the SHG crystal, and a narrow bandpass filter in front of the photodetector for filtering out non second harmonic light. The device reduces time broadening and delay of ultrashort pulses in the femtosecond time domain.
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申请公布号 |
US4973160(A) |
申请公布日期 |
1990.11.27 |
申请号 |
US19890334029 |
申请日期 |
1989.04.06 |
申请人 |
TAKIGUCHI, YOSHIHIRO;ALFANO, ROBERT R.;BUDANSKY, YURY |
发明人 |
TAKIGUCHI, YOSHIHIRO;ALFANO, ROBERT R.;BUDANSKY, YURY |
分类号 |
G01J9/02;G01J11/00;G01N21/63 |
主分类号 |
G01J9/02 |
代理机构 |
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主权项 |
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地址 |
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