Results 1 to 10 of about 188,860 (267)

Nonlinear Optical Microscopy and Plasmon Enhancement

open access: yesNanomaterials, 2022
Improving nonlinear optics efficiency is currently one of the hotspots in modern optical research. Moreover, with the maturity of nonlinear optical microscope systems, more and more biology, materials, medicine, and other related disciplines have higher ...
Yi Cao   +4 more
doaj   +3 more sources

Spatially engineered optical–acoustic matching in quartz-enhanced photoacoustic spectroscopy [PDF]

open access: yesPhotoacoustics
Quartz-enhanced photoacoustic spectroscopy (QEPAS) offers high sensitivity for trace-gas detection, but its performance is often limited by a spatial mismatch between distributed photoacoustic excitation and the intrinsic sensitivity region of the quartz
Ruyue Cui   +10 more
doaj   +2 more sources

M13 Bacteriophage-Assisted Synergistic Optical Enhancement of Perovskite Quantum Dots

open access: yesApplied Sciences, 2023
Bacteriophages demonstrate a remarkable ability to adhere to host surfaces, thus improving their chances of reproduction. These viral entities demonstrate extreme interface properties through their highly specific and periodic peptide receptors ...
Vanna Chrismas Silalahi   +7 more
doaj   +1 more source

Ultrathin Cu(In,Ga)Se2 Solar Cells with Ag/AlOx Passivating Back Reflector

open access: yesEnergies, 2021
Ultrathin Cu(In,Ga)Se2 (CIGS) absorber layers of 550 nm were grown on Ag/AlOx stacks. The addition of the stack resulted in solar cells with improved fill factor, open circuit voltage and short circuit current density. The efficiency was increased from 7%
Jessica de Wild   +5 more
doaj   +1 more source

All-optical switching based on plasmon-induced Enhancement of Index of Refraction

open access: yesNature Communications, 2022
Atomic systems show enhancement of index of refraction and its extension to optical system can be useful for all-optical switching. Here the authors demonstrate coherently controlled plasmon-induced enhancement of index of refraction in L-shaped ...
Rakesh Dhama   +4 more
doaj   +1 more source

Surface- and Tip-Enhanced Raman Scattering by CdSe Nanocrystals on Plasmonic Substrates

open access: yesNanomaterials, 2022
This work presents an overview of the latest results and new data on the optical response from spherical CdSe nanocrystals (NCs) obtained using surface-enhanced Raman scattering (SERS) and tip-enhanced Raman scattering (TERS).
Ilya A. Milekhin   +2 more
doaj   +1 more source

Strongly coupled Raman scattering enhancement revealed by scattering-type scanning near-field optical microscopy

open access: yesNanophotonics, 2023
Recent advances in near-field technology with an ultrahigh spatial resolution breaking optical diffraction limit, make it possible to further identify surface-enhanced Raman scattering (SERS) enhancement theories, and to monitor the SERS substrates. Here
Qin Kang   +8 more
doaj   +1 more source

Local versus bulk circular dichroism enhancement by achiral all-dielectric nanoresonators

open access: yesNanophotonics, 2022
Large optical chirality in the vicinity of achiral high-index dielectric nanostructures has been recently demonstrated as useful means of enhancing molecular circular dichroism.
Czajkowski Krzysztof M.   +1 more
doaj   +1 more source

Transparent conducting oxides (TCOs) based gratings for light absorption in near infrared spectrum

open access: yesResults in Optics, 2023
The present work examines the absorption enhancement of Transparent Conducting Oxides (e.g., Aluminum doped Zinc Oxide (AZO), Gallium doped Zinc Oxide (GZO), and Indium doped Tin Oxide (ITO) for widely used telecom spectral window around λ = 1550 nm ...
Yajvendra Kumar   +2 more
doaj   +1 more source

Analytic Theory for Parametric Amplification in High-Q Micro-Ring Resonators

open access: yesIEEE Photonics Journal, 2023
Optical parametric amplifiers (OPAs) are optical amplifiers based on four-wave mixing processes, showing great potential for applications in communications, optical signal processing, quantum optics, etc.
Shiqi He   +8 more
doaj   +1 more source

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