Visualization of light propagation and light in flight are general names for viewing a pulse of light traveling through an optical system. Abramson suggested [Appl. Opt. 30, 1242 (1991)] the use of light-in-flight techniques for holographic comparison of different objects. His system is based on sending picosecond pulses in such a sequence that, if the object has the desired shape, all the scattered light arrives simultaneously at an ultrafast detector. The result is that the shortness of the detected pulses is a measure of the similarity between a holographically recorded master object and the test object. The reference hologram is recorded from a master surface, which is not always available. This method suffers from low-contrast results. A computer-generated-hologram technique is suggested and mathematically analyzed. This technique overcomes the low-contrast problem, and a master object is not needed.
[1]
N. Abramson.
Light-in-flight recording: high-speed holographic motion pictures of ultrafast phenomena.
,
1983,
Applied optics.
[2]
Adolf W. Lohmann,et al.
Visualization of light propagation (A)
,
1979
.
[3]
Torgny E. Carlsson.
Measurement of three-dimensional shapes using Light-in-Flight recording by holography
,
1993
.
[4]
N Abramson.
Time reconstructions in light-in-flight recording by holography.
,
1991,
Applied optics.
[5]
N. Abramson.
Light-in-flight recording by holography.
,
1978,
Optics letters.
[6]
N H Abramson,et al.
Single pulse light-in-flight recording by holography.
,
1989,
Applied optics.