spontaneous emission
The Theory of Relativistic Spontaneous Emission from Hydrogen Atom in Schwarzschild Black Hole
... Relativistic conditions require a r < a o , since m e γ > m e . Thus there is contraction in 1 H atom during its free fall towards any strong gravitational star. Such contraction effect has been studied for many ...
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Spontaneous emission spectra of organic molecules in synthetic opal photonic crystals
... The emission of rhodamine 6G and 2,5-bis(2-benzoxazolyl)hydroquinone molecules embedded in synthetic opal photonic crystals are studied in the spectral range of 520–620 ...of spontaneous emission is ...
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SPONTANEOUS EMISSION OF AN EXCITED TWO- LEVEL ATOM IN PRESENCE OF A LEFT- HANDED SURFACE
... [1] V. G. veselago, “The electrodynamics of substances with simultaneously negative values of and , ” Sov. Usp. 10, 509 (1568). [2] E. Yablonnovitch, “Inhibited spontaneous emission in solid- state ...
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Emission from quantum dot high β microcavities : transition from spontaneous emission to lasing and the effects of superradiant emitter coupling
... amplified spontaneous emission, which the model describes (gray curves in Figure 4a), and partly from saturation of absorption losses, which the model does not take into ...stimulated emission, which ...
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The Role of Polarization and Spontaneous Emission in Lasing on the Basis of Maxwell’s Equations
... To increase laser application in our day life is it important to search for new ways to produce laser different attempts were made to search for new lasing mechanisms [14, 15]. Some of them used special relativity [16, ...
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Intra-cavity spectroscopy using amplified spontaneous emission in fiber lasers
... Abstract—Fiber laser sources offer interesting possibilities for gas sensors since they can operate over an extended wavelength range, encompassing the near-IR absorption lines of a number of important gases but a major ...
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Spontaneous emission and thermalization of cold bosons in optical lattices
... multiple spontaneous emission events, both because of the difficulty of restricting to a single event, and in order to make the change in the momentum distribution sufficiently large to ...
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The detrimental effect of spontaneous emission in quantum free electron lasers : a discrete Wigner model
... study spontaneous emission in high-gain free-electron lasers operating in the quantum regime and its detrimental effect on coherent ...neous emission in free electron lasers has been recently ...
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Spontaneous emission enhancement in a microtube cavity with highly confined optical modes'
... the emission decay in the single microtube ...amplified spontaneous emission in the single ...the emission decay observed here is due to increased gain in the aluminosilicate glass as an ...
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Ultrafast Optical Studies of Amplified Spontaneous Emission in Hybrid Organic-Inorganic Perovskites.
... amplified spontaneous emission (ASE), lead-halide perovskites have also found use as lasing media, with chemical substitutions allowing for easy tunability of ASE energy, and with much work being devoted to ...
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Spontaneous Emission and Energy Transfer Rates Near a Coated Metallic Cylinder
... The spontaneous emission and energy transfer rates of quantum systems in proximity to a dielectrically coated metallic cylinder are investigated using a Green’s tensor ...The spontaneous ...
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Spontaneous Emission Spectrum from a Driven Three-Level Atom in a Double-Band Photonic Crystal
... the spontaneous emission spectrum of the other transition can exhibit ”dark lines” (zeros in the spectrum at certain values of the emitted photon ...
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Plasmonic Effect of Gold Nanospheroid on Spontaneous Emission
... the spontaneous emission, the whole process is divided into two stages [10] for analysis; the first stage is the excitation of an emitter with the aid of the NP, and the second is the following ...
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Entanglement of an Atom and Its Spontaneous Emission Fields via Spontaneously Generated Coherence
... , so we have to consider an arrangement where each field acts only on one transition (Fig.1 (b)). Moreover, η represents the strengths of the interference in spontaneous emission. For parallel dipole ...
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Photon-echo rephasing of spontaneous emission from an ensemble of rare-earth ions
... FID emission if a co-propagating geometry were used for generating ...FID emission will be much larger than the spontaneous emission ...FID emission to be 6 orders of magnitude larger ...
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Enhancing ultraviolet spontaneous emission with a designed quantum vacuum
... One of the most interesting aspects of nanophotonics is that nanostructures can profoundly alter the properties of the quantum vacuum. In turn, this produces large variations in many fundamental phenomena that involve ...
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Density matrix approach for quantum free-electron lasers
... the density matrix approach are similar to Eqs. (8) (11) based on the discrete Wigner model. The difference between the both models is mainly due to the fact that the Lindblad form of the master equation fulfills the ...
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Frequency resolved optical gating in periodically poled lithium niobate waveguide devices
... Autocorrelation Amplified Spontaneous Emission Band-Pass Filter Difference-Frequency Generation Electro-Absorption Modulator Erbium-Doped Fibre Amplifier Electro-Optics Modulator Frequen[r] ...
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Optical Gain Coefficient Measurements for 1 (4’ (Diphenylamino) [1,1’ biphenyl] 4 yl)ethanone
... DOI: 10.4236/opj.2017.712022 250 Optics and Photonics Journal as an indication of the occurrence of amplified spontaneous emission. The spec- tra narrowing was not observed due the followings: the low input ...
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Coherent Control of Quantum Entropy via Quantum Interference in a Four-Level Atomic System
... the spontaneous emission can be used to produce atomic coherence as long as there exist two closely-lying levels with non-orthogonal dipole in an atomic ...on spontaneous emission is usually ...
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