发明名称 |
Second harmonic generator for obtaining an aberration free plane wave and information processing system using the same |
摘要 |
A second harmonic generator of the present invention utilizes Cerenkov radiation as a useful coherent short-wavelength light source. The second harmonic generator includes an aberration correction means to collimate the second harmonic to form a parallel plane wave having a high flatness. The aberration correction means is provided on an exit end face of a nonlinear waveguide which generates the second harmonic, and a glued cone prism, a cone prism having a conic exit end face changed in accordance with birefringence of the nonlinear waveguide, or a diffraction grating is used as the aberration correction means.
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申请公布号 |
US5117433(A) |
申请公布日期 |
1992.05.26 |
申请号 |
US19900618406 |
申请日期 |
1990.11.27 |
申请人 |
HITACHI, LTD. |
发明人 |
TATSUNO, KIMIO;YANAGISAWA, HIRONORI |
分类号 |
G02B6/34;G02B6/42;G02F1/37;G02F1/377;G02F1/383 |
主分类号 |
G02B6/34 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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