搜索结果: 1-13 共查到“光学 Coherence”相关记录13条 . 查询时间(0.13 秒)
Spectral spatial coherence of high-power multi-chip LEDs
Spectral spatial coherence high-power multi-chip LEDs
2013/7/3
We investigate the spatial coherence of the light generated from high-power multi-chip red LEDs by using the van Cittert-Zernike theorem. It is theoretically demonstrated that the light generated from...
Tight Focusing of Light Beams: Effect of Polarization, Phase, and Coherence
Tight Focusing Light Beams Effect of Polarization Phase Coherence
2013/7/3
The focusing theory of electromagnetic waves has been well developed. A scalar wave theory satisfactorily describes the focusing process for a small semi-aperture angle. However, the vectorial charact...
Quantum plasmonics: second-order coherence of surface plasmons launched by quantum emitters into a metallic film
Quantum plasmonics second-order coherence of surface plasmons quantum emitters Optics
2012/5/31
We address the issue of the second-order coherence of single surface plasmons launched by a quantum source of light into extended gold films. The quantum source of light is made of a scanning fluoresc...
Observation of Superfluorescence from a Spontaneous Coherence of Excitons in ZnTe Crystal: Evidence for Bose-Einstein Condensation of Excitons?
Superfluorescence Spontaneous Coherence Excitons ZnTe Crystal Bose-Einstein Condensation
2011/8/11
Abstract: Superfluorescence (SF) is the emission from a dense coherent system in population inversion, formed from an initially incoherent ensemble. This is characterised by an induction time (t_D) fo...
Theoretical study of Acousto-optical coherence tomography using random phase jumps on US and light
Acousto-optical random phase jumps coherence tomography
2011/9/6
Acousto-Optical Coherence Tomography (AOCT) is variant of Acousto Optic Imaging (called also ultrasonic modulation imaging) that makes possible to get z resolution with acoustic and optic Continuous W...
The drop of the coherence of the lower kHz QPOs is also observed in XTE J1701-462
accretion accretion disks stars individual XTE J1701–462
2010/12/21
We investigate the quality factor and RMS amplitude of the lower kHz QPOs from XTE J1701–462 a unique X-ray source which was observed in both the so-called Z and atoll states.
On-demand control of photon echoes far exceeding the spin coherence constraint via coherence swapping between optical and spin transitions
On-demand control photon echoes spin coherence constraint optical spin transitions
2010/11/8
Using on-demand coherence conversion via optical locking in conventional stimulated (three-pulse) photon echoes, ultralong, ultraefficient photon storage has been observed in a rare-earth Pr3+ doped Y...
Temporal coherence length of light in semiclassical field theory models
Temporal coherence length light semiclassical field theory models
2010/10/29
The following work is motivated by the conceptual problems associated with the wave-particle duality and the notion of the photon. Two simple classical models for radiation from individual emitters ar...
Limits on Preserving Quantum Coherence using Multi-Pulse Control
Limits Preserving Quantum Coherence Multi-Pulse Control
2010/10/19
We explore the physical limits of pulsed dynamical decoupling methods for decoherence control
as determined by finite timing resources. By focusing on a decohering qubit controlled by arbitrary seque...
Coherence properties of a single dipole emitter in diamond
Coherence properties single dipole emitter diamond
2010/10/19
On-demand, high repetition rate sources of indistinguishable, polarised single photons are the key component for future photonic quantum technologies [1].Colour centres in diamond offer a promising so...
Full-Field Optical Coherence Tomography Based on Hilbert Transform
Full-field optical coherence tomography (FF-OCT) Phase shifting interferometry (PSI) Hilbert transform
2009/6/2
Novel image restoration technique suitable for parallel detection in full-field optical coherence tomography (FF-OCT) is introduced. An en-face information of a sample can be demodulated from only two...
期刊信息
篇名
Improvement of the Resolution and Instantaneous Fringe-order Identification of Optical Coherence Tomography by Optimum Wavelength Combination
语种
英文
撰写或编译
作者
Xu zhongbao,Ye hunian
第一作者单位
刊物名称
S...
Induced coherence with and without induced emission
Induced coherence with without induced emission
2010/10/18
We analyze signal coherence in the setup of Wang, Zou and Mandel, where two optical downconverters have indistinct idler modes. Quantum interference, caused by indistinguishability of paths,has a visi...