Results 31 to 40 of about 270,007 (277)

On the Twistability of Partially Coherent, Schell-Model Sources

Photonics
In this paper, the problem of assessing the twistability of a given bona fide cross-spectral density is tackled for the class of Schell-model sources, whose shift-invariant degree of coherence is represented by a real and symmetric function, denoted as μ(
Riccardo Borghi
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Spatial Poincaré Plots as Descriptors of Speckle Pattern Second-Order Statistics

Journal of Biomedical Photonics & Engineering, 2017
It is demonstrated herein that the use of spatial Poincaré plots provides an efficient means to describe short and long-range correlations in the spatial structure of the measured intensity distribution of scattered coherent fields.
Anindya Majumdar, Sean J. Kirkpatrick
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Optics-less smart sensors and a possible mechanism of cutaneous vision in nature

, 2008
Optics-less cutaneous (skin) vision is not rare among living organisms, though its mechanisms and capabilities have not been thoroughly investigated.
A. B. Sichert, A. H. G. R. Kan, D.-E. Nilsson, D.-E. Nilsson, E. Sampaio, G. Békésy Von, G. J. Molenaar, H. L. Van-Trees, H. P. Zavala, I. R. Schwab, J. Pettigrew, L. Yaroslavsky, L. Yaroslavsky, M. Gardner, M. M. Bongard, P. Bach-y-Rita, R. Parker, W. J. Gehring   +17 more
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Measurement of Photon Statistics with Live Photoreceptor Cells

, 2013
We analyzed the electrophysiological response of an isolated rod photoreceptor of Xenopus laevis under stimulation by coherent and pseudo-thermal light sources. Using the suction electrode technique for single cell recordings and a fiber optics setup for
C. Michael Jones, D. A. Baylor, D. A. Baylor, D. N. Klyshko, Dmitri Bessarab, J. E. Dowling, L. Mandel, Leonid A. Krivitsky, Mei Fun Cheng, Nigel Sim   +9 more
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Accelerated rogue waves generated by soliton fusion at the advanced stage of supercontinuum formation in photonic crystal fibers [PDF]

, 2012
Soliton fusion is a fascinating and delicate phenomenon that manifests itself in optical fibers in case of interaction between co-propagating solitons with small temporal and wavelengths separation.
Babushkin, Ihar, Driben, Rodislav
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Propagation of Correlation Singularities of a Partially Coherent Laguerre–Gaussian Electromagnetic Beam in a Uniaxial Crystal

IEEE Photonics Journal, 2017
The correlation singularities of a partially coherent Laguerre–Gaussian (LG) electromagnetic beam in a uniaxial crystal is shown to possess interesting evolution behavior. The analytical formula for the cross-spectral density matrix of a partially
Yongtao Zhang, Liuzhan Pan, Yangjian Cai
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Yoctocalorimetry: phonon counting in nanostructures [PDF]

, 1998
It appears feasible with nanostructures to perform calorimetry at the level of individual thermal phonons. Here I outline an approach employing monocrystalline mesoscopic insulators, which can now be patterned from semiconductor heterostructures into ...
Abrahams, Allen, Altshuler, Altshuler, Blakemore, Blatt, Brune, Carroll, Clarke, Dash, Fukuyama, Garrett, Gurevich, Hilbert, Jin, Kaganov, Kawamura, Ketchen, Ketchen, Landau, Lee, Loren Pfeiffer, M.L. Roukes, Mailly, Martinis, Martinis, Martinis, Mihailovich, More, Nishiguchi, Phillips, Rego, Richards, Roukes, Roukes, Schmid, Tesche, Tighe, Tremblay, Vion, Webb, Webb, Wellstood, Zaremba, Ziman, Ziman   +45 more
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Statistically Correlating Laser-Induced Damage Performance with Photothermal Absorption for Fused Silica Optics in a High-Power Laser System

Photonics, 2022
Photothermal weak absorption is useful for the diagnosis of absorbing defects on the surface of fused silica optics in high-power lasers. However, how they relate to the laser-induced damage performance remains unclear, especially for a fused silica ...
Zhaohua Shi, Laixi Sun, Ting Shao, Hongjie Liu, Jin Huang, Xin Ye, Fengrui Wang, Liming Yang, Wanguo Zheng   +8 more
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Density Operators for Fermions

, 1998
The mathematical methods that have been used to analyze the statistical properties of boson fields, and in particular the coherence of photons in quantum optics, have their counterparts for Fermi fields.
Cahill, Kevin E., Glauber, Roy J.
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Propagation Properties of the Rectangular Multi-Gaussian Schell-Model Beams in Uniaxial Crystals Orthogonal to the Optical Axis

IEEE Photonics Journal, 2017
A stochastic beam generated by a recently introduced source of Schell type with rectangular multi-Gaussian spectral degree of coherence is shown to posses interesting novel features on propagation in uniaxial crystals.
Yonghua Mao, Zhangrong Mei
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