Spontaneous emission of radiation in a transition between two such levels leads to the emission of coherent radiation. The discussion is limited first to a gas of dimension small compared with a wavelength. Spontaneous radiation rates and natural line breadths are calculated. For a gas o...
Logical connectors is one of the major cohesive devices, it can achieve coherence in discourse. 逻辑连接词是衔接的一种主要方式,能实现语篇的连贯。 权威例句 Coherence in Spontaneous Radiation Processes Memory coherence in shared virtual memory systems ...
The n-th order Glauber coherence function has been calculated for spontaneous radiation from a large Dicke system being in particular, in a superradiant state.doi:10.1016/0375-9601(71)90577-9J ChrostowskiB KarczewskiElsevier B.V.Physics Letters A...
Observation of mutual coherency of spontaneous radiation from two undulators separated by achromatic bend The mutual coherency of spontaneous radiation from two undulators separated by an achromatic bend was observed. An updated magnetic system with an optical ... Gavrilov,N.G.,Kulipanov,... - 《...
“Device fabrication”). Therefore, the effects of these processes on surface quality must be considered as a convolution of the materials used and the fabrication processes employed. The differences in surface quality of aluminum- and tantalum-based thin films may be due to differences in ...
Coherent and partially coherent light is generated from a coherent laser and by filtering the amplified spontaneous emission (ASE) of an erbium-doped fibre amplifier (EDFA), respectively. The wavelength spectra of the investigated light sources centred around 1,550 nm are shown in Fig. 2a, inc...
Suitable light sources for such applications can be based on amplified spontaneous emission (ASE) from a laser amplifier (→ superluminescent sources) or on supercontinuum generation in nonlinear media. A low degree of temporal coherence can also be beneficial for laser projection displays, imaging ...
27. In particular, TLS contribution to dielectric loss is known to be saturable—it is suppressed when the intra-cavity energy exceeds a critical threshold. In this regime, the TLS spontaneous excitation and emission rates equilibrate as the TLS reach a steady state in which they no longer ...
The classical properties of thermal light fields were instrumental in shaping our early understanding of light. Before the invention of the laser, thermal light was used to investigate the wave-particle duality of light. The subsequent formulation of the quantum theory of electromagnetic radiation later...
b Experimental setup employed to carry out experiments within the two-excitation manifold: a two-photon source at a wavelength of 815 nm was implemented by means of spontaneous parametric down-conversion from a pump laser at a wavelength of 407.5 nm. Photons emerging at the output of the...