Results 61 to 70 of about 398,926 (227)
Phase-locked arrays of unstable resonator semiconductor lasers [PDF]
, 1986 A phase-locked array of several unstable resonator semiconductor lasers is demonstrated.
Salzman, J., Yariv, A.
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Coherence of a Josephson phase qubit under partial-collapse measurement
, 2007 We discuss quantum evolution of a decaying state in relation to a recent experiment of Katz et al. Based on exact analytical and numerical solutions of a simple model, we identify a regime where qubit retains coherence over a finite time interval ...
Alexander N. Korotkov +8 more
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Three-dimensional analysis of prebunched electron beams in an x-ray free-electron laser
Physical Review Special Topics. Accelerators and Beams, 2012 The effect of partial prebunching of an electron beam on the saturation length, efficiency, and longitudinal coherence is studied for a nominal x-ray free-electron laser design.
H. P. Freund, D. C. Nguyen, B. Carlsten
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, 2011 By varying the noise intensity, we study stochastic spiking coherence (i.e., collective coherence between noise-induced neural spikings) in an inhibitory population of subthreshold neurons (which cannot fire spontaneously without noise).
A Longtin +40 more
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Change of decoherence scenario and appearance of localization due to reservoir anharmonicity
, 2005 Although coupling to a super-Ohmic bosonic reservoir leads only to partial dephasing on short time scales, exponential decay of coherence appears in the Markovian limit (for long times) if anharmonicity of the reservoir is taken into account. This effect
E. Joos +6 more
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Coherent diffusion of partial spatial coherence
Optica, 2019 Partially coherent light is abundant in many physical systems, and its propagation properties are well understood. Here we extend current theory of propagation of partially coherent light beams to the field of coherent diffusion. Based on a unique four-wave mixing scheme of electro-magnetically induced transparency, an optical speckle pattern is ...
Ronen Chriki +4 more
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Linear algebraic theory of partial coherence: discrete fields and measures of partial coherence [PDF]
Journal of the Optical Society of America A, 2002 A linear algebraic theory of partial coherence is presented that allows precise mathematical definitions of concepts such as coherence and incoherence. This not only provides new perspectives and insights but also allows us to employ the conceptual and algebraic tools of linear algebra in applications. We define several scalar measures of the degree of
Ozaktas, H., M. +2 more
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Optical forces on small particles from partially coherent light
, 2012 We put forward a theory on the optical force exerted upon a dipolar particle by a stationary and ergodic partially coherent light field. We show through a rigorous analysis that the ensemble averaged electromagnetic force is given in terms of a partial ...
Albaladejo +36 more
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Comparison of two optical biometers in intraocular lens power calculation
Indian Journal of Ophthalmology, 2014 Aims: To compare the consistency and accuracy in ocular biometric measurements and intraocular lens (IOL) power calculations using the new optical low-coherence reflectometry and partial coherence interferometry.
Sheng Hui, Lu Yi
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Linear algebraic theory of partial coherence: continuous fields and measures of partial coherence [PDF]
Journal of the Optical Society of America A, 2016 This work presents a linear algebraic theory of partial coherence for optical fields of continuous variables. This approach facilitates use of linear algebraic techniques and makes it possible to precisely define the concepts of incoherence and coherence in a mathematical way.
Ozaktas H.M., Gulcu T.C., Kutay M.A.
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