发明名称 |
Method and apparatus for measuring the intensity and phase of an ultrashort light pulse |
摘要 |
The pulse shape I(t) and phase evolution x(t) of ultrashort light pulses are obtained using an instantaneously responding nonlinear optical medium to form a signal pulse. A light pulse, such a laser pulse, is split into a gate pulse and a probe pulse, where the gate pulse is delayed relative to the probe pulse. The gate pulse and the probe pulse are combined within an instantaneously responding optical medium to form a signal pulse functionally related to a temporal slice of the gate pulse corresponding to the time delay of the probe pulse. The signal pulse is then input to a wavelength-selective device to output pulse field information comprising intensity vs. frequency for a first value of the time delay. The time delay is varied over a range of values effective to yield an intensity plot of signal intensity vs. wavelength and delay. In one embodiment, the beams are overlapped at an angle so that a selected range of delay times is within the intersection to produce a simultaneous output over the time delays of interest./!
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申请公布号 |
US5754292(A) |
申请公布日期 |
1998.05.19 |
申请号 |
US19920966644 |
申请日期 |
1992.10.26 |
申请人 |
THE REGENTS OF THE UNIVERSITY OF CALIFORNIA;SANDIA NATIONAL LABORATORY |
发明人 |
KANE, DANIEL J.;TREBINO, RICK P. |
分类号 |
G01J11/00;(IPC1-7):G01B9/02 |
主分类号 |
G01J11/00 |
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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