Results 21 to 30 of about 132,317 (296)

Quantum-enhanced stimulated emission detection for label-free microscopy [PDF]

, 2020
Nonlinear optical microscopy techniques have emerged as a set of successful tools for biological imaging. Stimulated emission microscopy belongs to a small subset of pump-probe techniques, which can image non-fluorescent samples without requiring ...
Valerian Thiel, Datta, Animesh, Walmsley, Ian A, Anna L. Marchant, Helen M. Chrzanowski, Gil Triginer Garces, Chrzanowski, Helen M, Peter C. Humphreys, Animesh Datta, Daryanoosh, Shakib, Ian A. Walmsley, Patel, Raj B, Garces, Gil Triginer, Marchant, Anna L, Raj B. Patel, Humphreys, Peter C, Shakib Daryanoosh, Thiel, Valerian   +17 more
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Directional features of the downshifted peak observed in HF-induced stimulated electromagnetic emission spectra obtained using an interferometer [PDF]

, 2006
International audienceA high frequency (HF) ionospheric modification experiment was carried out between 25 September and 8 October 2004, using the EISCAT HF transmitter located near Tromsø, Norway.
Khudukon, B. Z., Rietveld, Michael T., Yurik, R.Yu, Brekke, A., M. Grill, A. Brekke, Tereshchenko, E., Khudukon, B., Rietveld, M., M. T. Rietveld, B. Isham, Belyey, Vasyl, Khudukon, B.Z., Tereshchenko, E.D., R. Yu. Yurik, T. Hagfors, Belyey, V., Isham, B., Hagfors, T., B. Z. Khudukon, Brekke, Asgeir, Rietveld, M. T., V. Belyey, Grill, M., Yurik, R. Yu., Yurik, R., Tereshchenko, E. D., E. D. Tereshchenko   +27 more
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An interferometer experiment to explore the aspect angle dependence of stimulated electromagnetic emission spectra [PDF]

, 2005
International audienceWhen the Earth's ionosphere is irradiated by a radiofrequency (RF) electromagnetic wave of sufficiently high power density and tuned to match a natural E- or F-region plasma frequency, ionospheric magnetoionic wave modes may be ...
Khudukon, B. Z., Rietveld, Michael T., Yurik, R.Yu, Brekke, A., Belyey, Tereshchenko, Tereshchenko, E., Khudukon, B., Rietveld, M., Hoz, C. La, Belyey, Vasyl, Tereshchenko, E.D., Hagfors, Yurik, R. Yu., Khudukon, Yu. Yurik, Heinselman, C., Grill, Brekke, Belyey, V., Isham, B., Rietveld, Hagfors, T., Heinselman, Brekke, Asgeir, Rietveld, M. T., La Hoz, C., Isham, null La Hoz, Grill, M., Yurik, Yu., null null, Yurik, R. Yu., Yurik, R., La Hoz, Cesar, Tereshchenko, E. D., La Hoz   +36 more
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Interpretation and Dynamics of the Lotka–Volterra Model in the Description of a Three-Level Laser

Photonics, 2021
In this work, the Lotka–Volterra equations where applied to laser physics to describe population inversion and the number of emitted photons. Given that predation and stimulated emissions are analogous processes, two rate equations where obtained by ...
Vicente Aboites, Jorge Francisco Bravo-Avilés, Juan Hugo García-López, Rider Jaimes-Reategui, Guillermo Huerta-Cuellar   +4 more
doaj   +1 more source

Non-destructive evaluation of cement-based materials from pressure-stimulated electrical emission - Preliminary results [PDF]

, 2011
This is the post-print version of the final paper published in Construction and Building Materials. The published article is available from the link below.
Brown, CJ, Anastasiadis, C, Kyriazopoulos, A, Triantis, D, C. Anastasiadis, C.J. Brown, A. Kyriazopoulos, D. Triantis   +7 more
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Raman stimulated neutrino pair emission

European Physical Journal C: Particles and Fields, 2019
A new scheme using macroscopic coherence is proposed to experimentally determine the neutrino mass matrix, in particular the absolute value of neutrino masses, and the mass type, Majorana or Dirac.
Hideaki Hara, Motohiko Yoshimura
doaj   +1 more source

Active Compensation of Differential Group Delay in a Dual-Wavelength Pulsed Fiber Laser Driven by Quasi-Synchronous Pumping

Photonics, 2022
We report on synchronized dual-wavelength (1.07 μm and 1.24 μm) pulsed lasing driven by a quasi-synchronous primary pumping (at 0.98 μm) of an Yb-doped fiber laser, which incorporates also a P2O5-doped fiber as an intracavity Raman converter.
Boris Nyushkov, Aleksey Ivanenko, Gleb Vishnyakov, Alexey Kharauzov, Sergey Smirnov   +4 more
doaj   +1 more source

Stimulated terahertz emission due to electronic Raman scattering in silicon [PDF]

, 2009
Silicon-based semiconductors are intensively investigated over the past years as promising candidates for optoelectronic devices at terahertz (THz) frequencies [1]. Optically pumped intracenter silicon lasers, realized in the past decade in the THz range,
Pavlov, S.G., Hubers, H. W., Riemann, H., Hübers, H.-W., van der Meer, A.F.G., H. Riemann, R. Kh. Zhukavin, Redlich, B., Pavlov, S.G. (author), Böttger, U. (author), Abrosimov, N.V. (author), J. N. Hovenier, Abrosimov, N.V., Hübers, H.W. (author), Hübers, H.W., V. N. Shastin, Pavlov, S. G., Hovenier, J.N. (author), Böttger, U., Abrosimov, N. V., Shastin, V. N., Shastin, V.N., U. Böttger, N. V. Abrosimov, S. G. Pavlov, Zhukavin, R. K., Redlich, B. (author), Zhukavin, R.K., Hovenier, J. N., B. Redlich, Hovenier, J.N., Zhukavin, R.K. (author), A. F. G. van der Meer, Zhukavin, R.Kh., Van der Meer, A.F.G. (author), H.-W. Hübers, Shastin, V.N. (author), van der Meer, A. F. G., Riemann, H. (author)   +38 more
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Round-Shaped Micro Bio-Lasers Utilizing Rhodamine B as a Gain Medium [PDF]

Progress in Physics of Applied Materials
Biolasers, new ones that utilize incorporated protein fluorophores within microscale optical cavities to produce coherent light, have a wide range of applications in medicine, including identification, diagnosing, and treating many diseases, skin repair,
Shima Vahidi, Maryam Aliannezhadi, Zahra Gholizadeh   +2 more
doaj   +1 more source

Two-photon absorption and stimulated emission in poly-crystalline Zinc Selenide with femtosecond laser excitation

Opto-Electronic Advances, 2022
The optical nonlinearity in polycrystalline zinc selenide (ZnSe), excited with 775 nm, 1 kHz femtosecond laser pulses was investigated via the nonlinear transmission with material thickness and the Z scan technique.
Qianliang Li, Walter Perrie, Zhaoqing Li, Stuart P Edwardson, Geoff Dearden   +4 more
doaj   +1 more source