Results 11 to 20 of about 1,526,379 (284)

Reversibly Tuning Electrochemiluminescence with Stimulated Emission Route for Single-Cell Imaging. [PDF]

Research (Wash D C), 2023
Electrochemiluminescence (ECL) has established itself as an excellent transduction technique in biosensing and light-emitting device, while conventional ECL mechanism depending on spontaneous emission of luminophores lacks reversibility and tunable ...
Ma C, Gou X, Xing Z, Wang MX, Zhu W, Xu Q, Jiang D, Zhu JJ.   +7 more
europepmc   +2 more sources

Stimulated Emission up to 2.75 µm from HgCdTe/CdHgTe QW Structure at Room Temperature. [PDF]

Nanomaterials (Basel), 2022
Heterostructures with thin Hg(Cd)Te/CdHgTe quantum wells (QWs) are attractive for the development of mid-infrared interband lasers. Of particular interest are room-temperature operating emitters for the short-wavelength infrared range (SWIR, typically ...
Utochkin VV, Kudryavtsev KE, Dubinov AA, Fadeev MA, Rumyantsev VV, Razova AA, Andronov EV, Aleshkin VY, Gavrilenko VI, Mikhailov NN, Dvoretsky SA, Teppe F, Morozov SV.   +12 more
europepmc   +2 more sources

Hawking radiation as stimulated emission

Physics Letters B, 2020
We regard the Parikh-Wilczek's tunnelling model of Hawking radiation as a quantum mechanical process of stimulated emission. The hypothesized microstates are found seated at the horizon with double degeneracy. A Jaynes-Cummings toy model for a black hole
Wen-Yu Wen
doaj   +3 more sources

Optimal irreversible stimulated emission

New Journal of Physics, 2012
We studied the dynamics of an initially inverted atom in a semi-infinite waveguide, in the presence of a single propagating photon. We show that atomic relaxation is enhanced by a factor of 2, leading to maximal bunching in the output field. This optimal
D Valente, Y Li, J P Poizat, J M Gérard, L C Kwek, M F Santos, A Auffèves   +6 more
doaj   +5 more sources

Electrical Pumping of Perovskite Diodes: Toward Stimulated Emission. [PDF]

Adv Sci (Weinh), 2021
The success of metal halide perovskites in photovoltaic and light‐emitting diodes (LEDs) motivates their application as a solid‐state thin‐film laser. Various perovskites have shown optically pumped stimulated emission of lasing and amplified spontaneous
Cho C, Antrack T, Kroll M, An Q, Bärschneider TR, Fischer A, Meister S, Vaynzof Y, Leo K.   +8 more
europepmc   +2 more sources

Reactivatable stimulated emission depletion microscopy using fluorescence-recoverable nanographene. [PDF]

Nat Commun
Stimulated emission depletion (STED) microscopy, a key optical super-resolution imaging method, has extended our ability to view details to resolution levels of tens of nanometers.
Yang Q, Failla AV, Turunen P, Mateos-Maroto A, Gai M, Zuschratter W, Westendorf S, Gelléri M, Chen Q, Goudappagouda, Zhao H, Zhu X, Morsbach S, Scheele M, Yan W, Landfester K, Kabe R, Bonn M, Narita A, Liu X.   +19 more
europepmc   +2 more sources

Cosmological stimulated emission

European Physical Journal C: Particles and Fields
We study stimulated emission and absorption of gravitons in a squeezed vacuum state immersed in a thermal radiation bath. Employing one-loop interaction-picture perturbation theory, we track the time evolution of the graviton number operator and its ...
Atsuhisa Ota
doaj   +3 more sources

Stimulated emission tomography: beyond polarization [PDF]

Optics Letters, 2018
In this work we demonstrate the use of stimulated emission tomography to characterize a hyper-entangled state generated by spontaneous parametric down-conversion in a CW-pumped source. In particular, we consider the generation of hyper-entangled states consisting of photon pairs entangled in polarisation and path. These results extend the capability of
Ciampini M. A., Geraldi A., Cimini V., Macchiavello C., Sipe J. E., Liscidini M., Mataloni P.   +6 more
core   +7 more sources

Terahertz transient stimulated emission from doped silicon [PDF]

APL Photonics, 2020
Transient-type stimulated emission in the terahertz (THz) frequency range has been achieved from phosphorus doped silicon crystals under optical excitation by a few-picosecond-long pulses generated by the infrared free electron lasers FELIX and CLIO. The
S. G. Pavlov, N. Deßmann, A. Pohl, R. Kh. Zhukavin, T. O. Klaassen, N. V. Abrosimov, H. Riemann, B. Redlich, A. F. G. van der Meer, J.-M. Ortega, R. Prazeres, E. E. Orlova, A. V. Muraviev, V. N. Shastin, H.-W. Hübers   +14 more
doaj   +2 more sources

Low-Power Two-Color Stimulated Emission Depletion Microscopy for Live Cell Imaging. [PDF]

Biosensors (Basel), 2021
Stimulated emission depletion (STED) microscopy is a typical laser-scanning super-resolution imaging technology, the emergence of which has opened a new research window for studying the dynamic processes of live biological samples on a nanometer scale ...
Zhang J, Gao X, Wang L, Guo Y, Zhu Y, Yang Z, Yan W, Qu J.   +7 more
europepmc   +2 more sources