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Spontaneous emission faster than stimulated emission
2013 Conference on Lasers and Electro-Optics Pacific Rim (CLEOPR), 2013With an optical antenna, spontaneous emission can be stronger and faster than stimulated emission, allowing direct modulation LED's for optical interconnects. We will present the evidence for 35X spontaneous emission enhancement by an optical antenna.
Eli Yablonovitch, Ming C. Wu
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Nanoparticle-Assisted Stimulated-Emission-Depletion Nanoscopy
ACS Nano, 2012We show that metal nanoparticles can be used to improve the performance of super-resolution fluorescence nanoscopes based on stimulated-emission-depletion (STED). Compared with a standard STED nanoscope, we show theoretically a resolution improvement by more than an order of magnitude, or equivalently, depletion intensity reductions by more than 2 ...
Yonatan, Sivan +4 more
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1980
Two methods to achieve a stimulated emission of phonons with frequencies in the THz-regime are described here. In both cases the generation of phonons is achieved by coupling to electronic states in doped dielectric crystals. The impurity ions are excited by pulsed laser light and an almost complete conversion of the absorbed energy is obtained ...
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Two methods to achieve a stimulated emission of phonons with frequencies in the THz-regime are described here. In both cases the generation of phonons is achieved by coupling to electronic states in doped dielectric crystals. The impurity ions are excited by pulsed laser light and an almost complete conversion of the absorbed energy is obtained ...
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Stimulated emission and black holes
Physical Review D, 1985The probability of a black hole emitting m particles when n particles are incident on the black hole was first derived by Bekenstein and Meisels, and later, using a different method, by Panangaden and Wald. In another paper by Bekenstein, it was argued that black holes should have stimulated emission in all modes including the nonsuperradiant ones.
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Nanophotonic Devices; Spontaneous Emission Faster than Stimulated Emission
2014Abstract : The goal of this project was to show that spontaneous emission could be accelerated by an optical antenna, to the point that it would become faster than stimulated emission. This would require spontaneous emission acceleration by 200x.
Ming C. Wu, Eli Yablonovitch
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Nitrogen Application Stimulates Methane Emissions
Global Change BiologyNitrogen fertilizer plays a vital role in rice cultivation, yet its excessive application significantly intensifies methane emissions from rice paddies. Therefore, the urgent adoption of effective agronomic interventions is crucial to mitigate methane emissions resulting from nitrogen fertilizer application.
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Stimulated X-ray emission spectroscopy
Photosynthesis ResearchWe describe an emerging hard X-ray spectroscopy technique, stimulated X-ray emission spectroscopy (S-XES). S-XES has the potential to characterize the electronic structure of 3d transition metal complexes with spectral information currently not reachable and might lead to the development of new ultrafast X-ray sources with properties beyond the state ...
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2012
The possibility to generate a stimulated emission of the FEL type by means of a crystalline undulator is discussed. The considered range of photon energies, \(10^2\)–\(10^3\) keV, is inaccessible in conventional FELs. Three different schemes of achieving the lasing effect are presented: (a) a gamma-amplifier based on the use of a single CU; (b) a gamma-
Andrey V. Korol +2 more
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The possibility to generate a stimulated emission of the FEL type by means of a crystalline undulator is discussed. The considered range of photon energies, \(10^2\)–\(10^3\) keV, is inaccessible in conventional FELs. Three different schemes of achieving the lasing effect are presented: (a) a gamma-amplifier based on the use of a single CU; (b) a gamma-
Andrey V. Korol +2 more
openaire +1 more source