Measurement of the two-dimensional intensity correlation function in a focused light beam

1974 ◽  
Vol 17 (5) ◽  
pp. 535-537
Author(s):  
�. I. Gel'fer ◽  
M. M. Knyazeva ◽  
T. A. Postnikova ◽  
A. M. Cheremukhin
Keyword(s):  
Correlation Function ◽  
Light Beam ◽  
Two Dimensional ◽  
Intensity Correlation ◽  
Intensity Correlation Function

scholarly journals Homodyne dynamic light scattering in supramolecular polymer solutions: anomalous oscillations in intensity correlation function

Soft Matter ◽  
2020 ◽  
Vol 16 (12) ◽  
pp. 2971-2993
Author(s):  
Emilie Moulin ◽  
Irina A. Nyrkova ◽  
Nicolas Giuseppone ◽  
Alexander N. Semenov ◽  
Eric Buhler
Keyword(s):  
Correlation Function ◽  
Light Scattering ◽  
Dynamic Light Scattering ◽  
Polymer Solutions ◽  
Supramolecular Polymer ◽  
Intensity Correlation ◽  
Molecular Systems ◽  
Self Assembling ◽  
Intensity Correlation Function

Light-sensitive self-assembling molecular systems display well-defined and persistent oscillations in the homodyne intensity correlation function after irradiation.

scholarly journals Gradient Correlation Functions in Digital Image Correlation

2019 ◽  
Vol 9 (10) ◽  
pp. 2127 ◽  
Author(s):  
Mikael Sjödahl
Keyword(s):  
Correlation Function ◽  
Digital Image Correlation ◽  
Digital Image ◽  
Correlation Functions ◽  
Laser Speckle ◽  
Image Correlation ◽  
Intensity Correlation ◽  
Intensity Correlation Function ◽  
Speckle Patterns ◽  
The Difference

The performance of seven different correlation functions applied in Digital Image Correlation has been investigated using simulated and experimentally acquired laser speckle patterns. The correlation functions were constructed as combinations of the pure intensity correlation function, the gradient correlation function and the Hessian correlation function, respectively. It was found that the correlation function that was constructed as the product of all three pure correlation functions performed best for the small speckle sizes and large correlation values, respectively. The difference between the different functions disappeared as the speckle size increased and the correlation value dropped. On average, the random error of the combined correlation function was half that of the traditional intensity correlation function within the optimum region.

CONTINUOUS-VARIABLE ENTANGLEMENT OF THE CAVITY AND EXCITON MODE

2009 ◽  
Vol 07 (01) ◽  
pp. 357-363
Author(s):  
E. WU ◽  
XIAO-AN ZHANG ◽  
XI-MING WANG ◽  
LI-XIA ZENG
Keyword(s):  
Correlation Function ◽  
Sudden Death ◽  
Quantum Well ◽  
Continuous Variable ◽  
Second Order ◽  
Intensity Correlation ◽  
Exciton Mode ◽  
Semiconductor Quantum Well ◽  
Intensity Correlation Function ◽  
Antibunching Effect

We consider a semiconductor quantum well in the excitation system. Applying the pertinent Hamiltonian, we investigate the second-order intensity correlation function and the entanglement properties between the cavity and exciton mode. It is found that nonclassical (antibunching) effect and sudden death effect occur in our system.

Influence of Noise on Time Evolution of Intensity Correlation Function

2005 ◽  
Vol 44 (5) ◽  
pp. 867-872
Author(s):  
Qing-Hua Cheng ◽  
Li Cao ◽  
Da-Hai Xu ◽  
Da-Jin Wu
Keyword(s):  
Correlation Function ◽  
Time Evolution ◽  
Intensity Correlation ◽  
Intensity Correlation Function ◽  
Influence Of Noise

Surface-roughness dependence of the intensity correlation function under speckle-pattern illumination

1990 ◽  
Vol 7 (12) ◽  
pp. 2254 ◽  
Author(s):  
Takeaki Yoshimura ◽  
Kazuo Kato ◽  
Kiyoshi Nakagawa
Keyword(s):  
Surface Roughness ◽  
Correlation Function ◽  
Speckle Pattern ◽  
Intensity Correlation ◽  
Intensity Correlation Function

EFFECTS OF CORRELATION BETWEEN REAL AND IMAGINARY PARTS OF THE QUADRATIC PUMP NOISE ON THE INTENSITY FLUCTUATION OF A SINGLE-MODE LASER SYSTEM

2009 ◽  
Vol 23 (02) ◽  
pp. 155-161
Author(s):  
G. H. ZHAO ◽  
Y. L. XIANG ◽  
D. C. MEI
Keyword(s):  
Correlation Function ◽  
Relaxation Time ◽  
Intensity Fluctuation ◽  
Laser System ◽  
Single Mode ◽  
Intensity Correlation ◽  
Mode Laser ◽  
The Real ◽  
Single Mode Laser ◽  
Intensity Correlation Function

The effects of the correlations between real and imaginary parts of the quadratic pump noise on the normalized intensity correlation function and the associated relaxation time of a single-mode laser model were investigated. The expressions of the intensity correlation function C(s) and the relaxation time Tc were derived. Based on numerical computations, we found that Tc monotonously increases as the strength λp of correlation between the real and imaginary parts of quadratic pump noise increases and the larger λp value is, the slower C(s) decays. The presence of correlations between the real and imaginary parts of the quadratic pump noise causes the intensity fluctuation to increase.

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