Results 81 to 90 of about 15,192 (186)
Recent advances in organic broad‐spectrum photodetection materials and devices
InfoMat, EarlyView.Graphical Abstract This review systematically outlines the evolution of organic photodetectors from fullerene‐based to advanced non‐fullerene acceptors, highlighting how molecular engineering (e.g., D–A, quinoidal, and A‐D‐A′‐D‐A architectures) extends spectral response into the short‐wave infrared region.
Yilin Zhao +3 more
wiley +1 more source
Cavity Design in Woodpile Based 3D Photonic Crystals
Applied Sciences, 2018 In this paper, we present a design of a three-dimensional (3D) photonic crystal (PhC) nanocavity based on an optimized woodpile structure. By carefully choosing the position of the defect at the lattice center, we can create a cavity with high symmetry ...
Xu Zheng +3 more
doaj +1 more source
Interdisciplinary Medicine, EarlyView.Due to the characteristics of miniaturization, high sensing performance, integration, and high comfort, MEMS‐based devices were employed to design sensors, imaging systems, drug delivery systems, retinal prosthesis, surgical tools, and wearable products for the ophthalmic disease diagnosis, treatment, and monitoring.
Yaling Peng +10 more
wiley +1 more source
Optical Kerr Gating as a Strategy for Noise Reduction in Femtosecond Stimulated Raman Spectroscopy
Journal of Raman Spectroscopy, EarlyView.We report an experimental approach, where an Optical Kerr gate is incorporated with Femtosecond Stimulated Raman Spectrometry (FSRS). The gate functions as a temporal filter that preferentially suppresses the FSRS inherent background. FSRS spectra are reported with the Kerr‐gated methodology with significantly improved SNR compared to the conventional ...
Spyridon Kaziannis +5 more
wiley +1 more source
Frequency splitting of polarization eigenmodes in microscopic Fabry–Perot cavities
New Journal of Physics, 2015 We study the frequency splitting of the polarization eigenmodes of the fundamental transverse mode in CO _2 laser-machined, high-finesse optical Fabry–Perot cavities and investigate the influence of the geometry of the cavity mirrors.
Manuel Uphoff +3 more
doaj +1 more source
Plasmon-Induced Transparency in an Asymmetric Bowtie Structure
Nanoscale Research Letters, 2019 Plasmon-induced transparency is an efficient way to mimic electromagnetically induced transparency, which can eliminate the opaque effect of medium to the propagating electromagnetic wave.
Wei Wei, Xin Yan, Bing Shen, Xia Zhang
doaj +1 more source
Resonant backward scattering of light by a two-side-open subwavelength metallic slit
, 2005 The backward scattering of TM-polarized light by a two-side-open subwavelength slit in a metal film is analyzed. We show that the reflection coefficient versus wavelength possesses a Fabry-Perot-like dependence that is similar to the anomalous behavior ...
Csapo, L. +4 more
core +1 more source
Journal of Raman Spectroscopy, EarlyView.Inter‐Theta‐Gram spectroscopy enables super‐spectral‐resolution Raman analysis by jointly reconstructing the excitation laser line and Raman peak during an etalon angle scan, yielding internally referenced Raman shifts. Demonstrated on lab‐grown versus natural diamond, it resolves 0.1–0.2 cm−1 Raman‐shift offsets that are invisible in conventional ...
Yishai Amiel +3 more
wiley +1 more source
All-Optically Controlled Quantum Memory for Light with a Cavity-Optomechanical System
Entropy, 2013 Optomechanics may be viewed as a light-mechanics interface to realize hybrid structures for (classical or quantum) information processing, switching or storage.
Ka-Di Zhu, Wen Bin, Jinjin Li
doaj +1 more source
A micropillar for cavity optomechanics
, 2011 We present a new micromechanical resonator designed for cavity optomechanics. We have used a micropillar geometry to obtain a high-frequency mechanical resonance with a low effective mass and a very high quality factor.
Bahriz, M. +10 more
core +3 more sources