Results 61 to 70 of about 93,620 (314)

Bioinspired superwetting SERS substrate based on femtosecond laser processing: Principles, methods, and applications

Droplet
The growing demand for surface‐enhanced Raman scattering sensors in biochemical detection, environmental monitoring, microfluidics, and other fields has promoted the development of highly sensitive and stable substrates.
Jinglan Huo, Xubo Huang, Jiangfeng Zhu
doaj   +1 more source

Quantum theory of surface-enhanced resonant Raman scattering (SERRS) of molecules in strongly coupled plasmon–exciton systems

Nanophotonics, 2020
Localised surface plasmons can couple strongly with the electronic transitions of a molecule, inducing new hybridised states of light and matter, the plasmon–exciton polaritons.
Neuman Tomáš, Aizpurua Javier, Esteban Ruben   +2 more
doaj   +1 more source

Coherent Raman scattering imaging with a near-infrared achromatic metalens

APL Photonics, 2021
Miniature handheld imaging devices and endoscopes based on coherent Raman scattering are promising for label-free in vivo optical diagnosis. Toward the development of these small-scale systems, a challenge arises from the design and fabrication of ...
Peng Lin, Wei Ting Chen, Kerolos M. A. Yousef, Justin Marchioni, Alexander Zhu, Federico Capasso, Ji-Xin Cheng   +6 more
doaj   +1 more source

Quantitative detection of pharmaceuticals using a combination of paper microfluidics and wavelength modulated Raman spectroscopy

, 2015
Raman spectroscopy has proven to be an indispensable technique for the identification of various types of analytes due to the fingerprint vibration spectrum obtained.
Derek Craig, Kishan Dholakia (426528), Michael Mazilu, Michael Mazilu (426524), Craig, Derek, Mazilu, Michael, Dholakia, Kishan, Derek Craig (290904), Derek Craig, Kishan Dholakia   +9 more
core   +1 more source

Digitizing the Filtration Interface: A Smart, Modular Janus Wood Platform for Self‐Reporting Oil/Water Remediation

Advanced Functional Materials, EarlyView.
This work developed a smart Janus wood membrane integrating asymmetric wettability with built‐in electrical sensing for oil‐water separation. The membrane achieved > 99.5% separation efficiency and high flux by leveraging wood's natural anisotropic pore structure.
Kaiwen Chen, Cheng Hao, Wenjuan Zhao, Haonan Zhang, Yujing Tan, Fengze Sun, Xuewen Han, Hui Peng, Tianyi Zhan, Jianxiong Lyu, Ning Yan   +10 more
wiley   +1 more source

Competing Inversion-Based Lasing and Raman Lasing in Doped Silicon

Physical Review X, 2018
We report on an optically pumped laser where photons are simultaneously generated by population inversion and by stimulated Raman scattering in the same active medium, namely crystalline silicon doped by bismuth (Si∶Bi).
S. G. Pavlov, N. Deßmann, B. Redlich, A. F. G. van der Meer, N. V. Abrosimov, H. Riemann, R. Kh. Zhukavin, V. N. Shastin, H.-W. Hübers   +8 more
doaj   +1 more source

Cladding-pumped Raman fiber with a W-type core designed for power scaling

, 2009
We design a cladding-pumped fiber Raman amplifier with a wavelength-filtering W-type core for the suppression of the 2nd-order Raman Stokes.
J. Ji, J. Nilsson, Nilsson, J., Ji, J., Codemard, C.A., C. A. Codemard   +5 more
core   +1 more source

Oxidized MoS2‐Based Multifunctional Memristive Hardware for Energy‐Efficient mmWave Signal Processing and In‐Memory Matrix Multiplication

Advanced Functional Materials, EarlyView.
Thermally oxidized MoS2‐based radio‐frequency switches enable a multifunctional platform that unifies broadband RF switching and in‐memory computation. The device achieves a cutoff frequency of 33.2 THz with high energy efficiency and supports hardware‐aware signal processing.
Juho Son, Changwoo Pyo, Sungmoon Park, Yoongi Cho, Seungchan Lee, Myungsoo Kim   +5 more
wiley   +1 more source

Stimulated Raman Scattering

, 1975
Stimulated Raman scattering was accidentally discovered by Woodbury and Ng in 1962 [7.1]. In studying Q-switching of a ruby laser by a nitrobenzene Kerr cell, they detected intense infrared radiation emitted from the Kerr cell, whose origin was not immediately identified.
openaire   +2 more sources

Fiber-Coupled Ultra-High-Q Microresonators for Nonlinear and Quantum Optics [PDF]

, 2004
The ability to confine optical energy in small volumes for long periods of time is desirable for a number of applications, ranging from photonics and nonlinear optics, to fundamental studies in quantum electrodynamics.
Spillane, Sean Michael
core   +1 more source