Results 81 to 90 of about 53,162 (277)

Heat evacuation from active Raman media using frequency-selective dissipative coupling

Physical Review Research, 2021
We propose to use frequency-selective dissipative coupling to reduce the heat generated by coherent anti-Stokes Raman scattering (CARS) reversed cycles in active Raman media with phase mismatch.
Galina Nemova, Christophe Caloz
doaj   +1 more source

Generation of coherent phonons in bismuth by ultrashort laser pulses in the visible and NIR: displacive versus impulsive excitation mechanism

, 2011
We have applied femtosecond pump-probe technique with variable pump wavelength to study coherent lattice dynamics in Bi single crystal. Comparison of the coherent amplitude as a function of pump photon energy for two different in symmetry Eg and A1g ...
Chekalin, S. V., Melnikov, A. A., Misochko, O. V.   +2 more
core   +1 more source

Photoinduced Fano-resonance of coherent phonons in zinc [PDF]

, 2006
Utilizing femtosecond optical pump-probe technique, we have studied transient Fano-resonance in zinc. At high excitation levels the Fourier spectrum of the coherent E$_{2g}$ phonon exhibits strongly asymmetric line shape, which is well modeled by the ...
G. A. Bolotin, Jure Demsar, M. V. Klein, Masahiro Kitajima, Muneaki Hase   +4 more
core   +2 more sources

Scalable Thermal Engineering via Femtosecond Laser‐Direct‐Written Phononic Nanostructures

Advanced Functional Materials, EarlyView.
This study demonstrates that femtosecond laser‐induced periodic surface structures (fs‐LIPSS) can function as phononic metasurfaces, reducing thermal conductivity below the plain thin‐film limit. Phonon Monte Carlo analysis reveals that the periodic structures restrict phonon mean free paths.
Hiroki Hamma, Roman Anufriev, Kazuyoshi Fushinobu, Masahiro Nomura, Byunggi Kim   +4 more
wiley   +1 more source

Super-resolved coherent anti-Stokes Raman scattering microscopy by coherent image scanning

Nature Communications
We present super-resolved coherent anti-Stokes Raman scattering (CARS) microscopy by implementing phase-resolved image scanning microscopy, achieving up to two-fold resolution increase as compared with a conventional CARS microscope. Phase-sensitivity is
Anna Zhitnitsky, Elad Benjamin, Ora Bitton, Dan Oron   +3 more
doaj   +1 more source

Invited Article: Comparison of hyperspectral coherent Raman scattering microscopies for biomedical applications

APL Photonics, 2018
Raman scattering based imaging represents a very powerful optical tool for biomedical diagnostics. Different Raman signatures obtained by distinct tissue structures and disease induced changes provoke sophisticated analysis of the hyperspectral Raman ...
T. Bocklitz, T. Meyer, M. Schmitt, I. Rimke, F. Hoffmann, F. von Eggeling, G. Ernst, O. Guntinas-Lichius, J. Popp   +8 more
doaj   +1 more source

Nanoscale structural characterization of plasmon-driven reactions

Nanophotonics, 2021
Illumination of noble metal nanostructures by electromagnetic radiation induces coherent oscillations of conductive electrons on their surfaces. These coherent oscillations of electrons, also known as localized surface plasmon resonances (LSPR), are the ...
Li Zhandong, Kurouski Dmitry
doaj   +1 more source

Multiorder coherent Raman scattering of a quantum probe field

, 2003
We study the multiorder coherent Raman scattering of a quantum probe field in a far-off-resonance medium with a prepared coherence. Under the conditions of negligible dispersion and limited bandwidth, we derive a Bessel-function solution for the sideband
A. Mann, A. Nazarkin, A.H. Toor, A.K. Patnaik, A.S. Zibrov, A.V. Sokolov, A.V. Sokolov, A.V. Sokolov, A.V. Sokolov, Anil K. Patnaik, B. Yurke, B.C. Sanders, B.C. Sanders, B.C. Sanders, C. Monroe, C.C. Gerry, C.H. Bennett, C.K. Hong, D. Bouwmeester, D. Wilson, Fam Le Kien, Fam Le Kien, Fam Le Kien, Fam Le Kien, Fam Le Kien, H. Fearn, H. Huang, H. Jeong, H.P. Yuen, J. Clausen, J. Torgerson, J.C. Howell, J.Q. Liang, Janszky, K. Hakuta, K. Mattle, L.J. Wang, M. Brune, M. Dakna, M. Katsuragawa, M. Ley, M. Paternostro, M.D. Lukin, M.O. Scully, M.S. Kim, M.W. Noel, N. Zhavoronkov, N.A. Ansari, P.T. Cochrane, R. Kolesov, R.A. Bartels, R.A. Campos, S. Hill, S. Prasad, S.E. Harris, S.E. Harris, S.E. Harris, S.J. van Enk, S.P. Walborn, T.B. Pittman, T.C. Ralph, V. Bužek, V. Kalosha, V.P. Kalosha, V.P. Kalosha, V.V. Dodonov, W.J. Munro, W.K. Lai, W.K. Wootters, Wang Xiang-bin, X. Wang, X. Wang, Z.Y. Ou, Z.Y. Ou, Z.Y. Ou   +74 more
core   +2 more sources

High Entropy Wide‐Bandgap Borates with Broadband Luminescence and Large Nonlinear Optical properties

Advanced Functional Materials, EarlyView.
High‐entropy rare‐earth borates exhibit excellent nonlinear optical and broadband luminescence properties arising from multi‐component doping, chemical disorder, increased configurational entropy, and increased lattice and electronic anharmonicity. This formulation enabled us to obtain a large, environmentally stable single crystal with 3X higher laser‐
Saugata Sarker, Yu Wang, Yongwen Sun, Caeli Benyacko, Saeed S.I. Almishal, Tao Zhou, Zhiyu Zhang, Jadupati Nag, Himirkanti Sarkar, Jeffrey Shallenberger, Hemant Yennawar, Yang Yang, Jon‐Paul Maria, Zhiqiang Mao, Venkatraman Gopalan   +14 more
wiley   +1 more source

Mechanistic Insights into a Synergistic FeOx/Fe‐N4 System for Practical Nitrate Abatement with Value‐Added Ammonia Recovery

Advanced Functional Materials, EarlyView.
This work provides a novel interpretation of the nitrate reduction mechanism on iron oxides (FeOx) by employing constant‐potential density functional calculations and reports the design and synthesis of a robust and high‐performance Fe3O4/Fe‐N4‐C catalyst with remarkable Faradaic efficiency, current density, and stability under practical reaction ...
Qiang Zhou, Hongzhi Liu, Shenglin Liu, Yuwei Liu, Mamiko Nakabayashi, Yunlong Xie, Naoya Shibata, Feng Gong, Jean‐Jacques Delaunay   +8 more
wiley   +1 more source