Interaction of two coherent light beams with ultrasonic wave

2019 ◽  
Author(s):  
Piotr Kwiek
Keyword(s):  
Ultrasonic Wave ◽  
Coherent Light ◽  
Light Beams

X.—Remarks on Coincidence Experiments with Visible Light

1962 ◽  
Vol 66 (2) ◽  
pp. 111-115
Author(s):  
Z. Bay ◽  
P. S. Farago
Keyword(s):  
Quantum Theory ◽  
Visible Light ◽  
The Other ◽  
Coherent Light ◽  
Quadratic Effect ◽  
Linear Effect ◽  
Negative Results ◽  
Light Beams

SynopsisAfter the detection of correlations in two coherent light beams by Hanbury Brown and Twiss, objections were raised by Brannen and Ferguson on the basis of the experiments of Adam, Janossy and Varga and their own experiments in which no correlations were detected. It is pointed out here that the different groups were looking for two entirely different effects, one being quadratic, the other one linear in the number of photons involved; the quadratic effect (discovered by Hanbury Brown and Twiss) is in agreement with quantum theory while the linear effect is not. It was shown by Purcell and by Hanbury Brown and Twiss that the choice of parameters in the experiments which gave negative results was inadequate to show the quadratic effect. It is shown in this paper that their experiments were also inadequate to decide between the existence or nonexistence of the linear effect.

Optoelectronic system of prompting and stabilizing coherent light beams in a given point of an eye

1996 ◽  
Author(s):  
Yuri G. Danik ◽  
Vladimir I. Karpenko ◽  
Svyatoslav N. Fyodorov ◽  
Vladimir I. Turin ◽  
Olga E. Zaslavskaya ◽  
...  
Keyword(s):  
Coherent Light ◽  
Optoelectronic System ◽  
Light Beams
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