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Radiation‐induced hypothyroidism follows head and neck radiotherapy due to oxidative stress and inflammation. Electrospun polycaprolactone scaffolds containing adenosine have potential to modulate thyroid repair. Scaffolds enhance thyrocyte proliferation, antioxidant enzymes glutathione peroxidase and catalase, reduce senescence and apoptosis markers ...
Maria Heim +5 more
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Lysosome‐targeted acidic nanoparticles based on a biodegradable poly(ethylene tetrafluorosuccinate‐co‐succinate) copolymer are engineered to restore impaired lysosomal acidification through pH‐responsive intracellular degradation. Localized acid release enhances autophagic proteolysis, reduces α‐synuclein accumulation, and preserves dopaminergic neuron
Chih Hung Lo +6 more
wiley +1 more source
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Stimulated Emission Tomography
Physical Review Letters, 2013We identify a relation between the number of photon pairs generated by parametric fluorescence, through either spontaneous parametric down-conversion (SPDC) or spontaneous four-wave mixing, and the number generated by the corresponding stimulated process, respectively, either difference-frequency generation or stimulated four-wave mixing.
LISCIDINI, MARCO, J. E. Sipe
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Cooling Atoms with Stimulated Emission
Physical Review Letters, 1986We have observed an efficient collimation of a cesium atomic beam crossing at right angles an intense laser standing wave. This new cooling scheme is mainly based on a stimulated redistribution of photons between the two counterpropagating waves by the moving atoms. By contrast with usual radiation pressure cooling, this "stimulated molasses" works for
Aspect, A. +4 more
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Stimulated Emission from Nuclei
Applied Optics, 1974The feasibility of obtaining stimulated emission of both zero and finite mass particles from nuclei is considered, and the limitations imposed on the relevant nuclear parameters determined.
J, Byrne, G I, Peters, L, Allen
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Stimulated Emission Depletion Microscopy
Chemical Reviews, 2017Despite its short history, diffraction-unlimited fluorescence microscopy techniques have already made a substantial imprint in the biological sciences. In this review, we describe how stimulated emission depletion (STED) imaging originally evolved, how it compares to other optical super-resolution imaging techniques, and what advantages it provides ...
Hans Blom, Jerker Widengren
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2012
AbstractStimulated emission is treated as a ‘special case of luminescence’ that requires population inversion of energy levels. After introductory examples of spontaneous emission spectra influenced by ingredient of stimulated emission, basic concept of spontaneous and stimulated emission (Einstein coefficients) in an atomic system is reviewed.
Ivan Pelant, Jan Valenta
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AbstractStimulated emission is treated as a ‘special case of luminescence’ that requires population inversion of energy levels. After introductory examples of spontaneous emission spectra influenced by ingredient of stimulated emission, basic concept of spontaneous and stimulated emission (Einstein coefficients) in an atomic system is reviewed.
Ivan Pelant, Jan Valenta
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Stimulated Emission Tomography
CLEO: 2014, 2014We experimentally demonstrate the reconstruction of the polarization state of entangled photon pairs by stimulated emission tomography.
Liscidini, M. +6 more
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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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Stimulated Emission of Polaritons
Journal of Applied Physics, 1972The gain of optically pumped CdS lasers is calculated assuming that stimulated emission occurs with photonlike polaritons created in inelastic exciton-exciton collisions; it is shown that gain constants of the recently observed magnitude can be expected from this mechanism.
Herbert Mahr, C. L. Tang
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