Results 61 to 70 of about 263,956 (158)

Polymerization Photoinitiators with Near-Resonance Enhanced Two-Photon Absorption Cross-Section: Towards High-Resolution Photoresists with Improved Sensitivity

, 2020
Synthesis of novel photoinitiators, spectroscopic (UV vis, fluorescence, steady state and time resolved), electrochemical and EPR studies of their photoinduced radical generation mechanisms, Z-scan measurements of their two-photon absorption cross ...
Patrice L., Baldeck, Chantal, Andraud, Caroline, Arnoux, Cyrille, Monnereau, Eric Aymé, Poutougnigni, tatsuki, konishi, jean-christophe, Mulatier, Ákos, Bányász, Kenji, Kamada, Elise, Dumont, Lhoussain, Khrouz, Christophe, Bucher, Emma, Van Elslande   +12 more
core   +1 more source

Two-photon absorption study with coupled mode formalism

JPhys Photonics
Optical limiting devices employ two photon absorption (TPA) in materials for sensor and eye protection. To be able to reduce the intensity threshold for protection, cavity structures can be considered.
Naman Gupta, Sudarshan Das, Srini Krishnamurthy, Sivarama Krishnan, Rituraj   +4 more
doaj   +1 more source

Optical pulse generation and signal processing for the development of high-speed OTDM networks [PDF]

, 2006
Due to the continued growth of the Internet and the introduction of new broadband services, it is anticipated that individual channel data rates may exceed lOOGbit/s in the next 5-10 years.
Maguire, Paul J.
core  

Two-photon long-period grating inscription in pure-fused-silica photonic crystal fiber [PDF]

, 2007
Photochemical inscription of a long-period grating in a pure fused silica photonic crystal fiber (PCF) is reported.
Brambilla, Gilberto, David N. Nikogosyan, Andrei A. Fotiadi, Gilberto Brambilla, Stephen A. Slattery, Fotiadi, Andrei A., Nikogosyan, David N., Slattery, Stephen A.   +7 more
core   +1 more source

Optical nonlinearities of colloidal InP@ZnS core-shell quantum dots probed by Z-scan and two-photon excited emission

APL Materials, 2015
Spectrally resolved nonlinear optical properties of colloidal InP@ZnS core-shell quantum dots of various sizes were investigated with the Z-scan technique and two-photon fluorescence excitation method using a femtosecond laser system tunable in the range
Dominika Wawrzynczyk, Janusz Szeremeta, Marek Samoc, Marcin Nyk   +3 more
doaj   +1 more source

Nonlinear Absorption Response Correlated to Embedded Ag Nanoparticles in BGO Single Crystal: From Two-Photon to Three-Photon Absorption

Scientific Reports, 2018
We report on the embedded silver (Ag) nanoparticles fabricated by Ag+ ion implantation into the Bi4Ge3O12 (BGO) crystal. Localized surface plasmon resonance (LSPR) phenomenon has been observed by linear optical absorption spectrum, which is accordance ...
Rang Li, Ningning Dong, Feng Ren, Hiro Amekura, Jun Wang, Feng Chen   +5 more
doaj   +1 more source

Observation of Two-Photon Induced Excited-State Absorption Phenomena in C60 and C70 Derivatives

, 2012
Four fullerene dyads with different cabazole units, named a, b, c, d, were studied by using a femtosecond laser with 780nm wavelength using Z-scan methods. Interestingly, all of them show strong two-photon induced excitedstate absorption behaviors, which
欧阳新华
core   +1 more source

Large nonlinear optical absorption and refraction of β-In2Se3 thin film from above to below bandgap excitation

Applied Physics Express
Nonlinear optical materials, especially two-dimensional materials, are anticipated to reveal broadband optical nonlinearity for future miniaturized photonic applications.
Dan Wu, Wen Dong, Yanqing Ge, Xueqin Cao, Mingjian Shi, Erkang Li, Nan Ma, Yixuan Zhou, Yuanyuan Huang, Chunhui Lu, Xinlong Xu   +10 more
doaj   +1 more source

Emulation of coherent absorption of Fock-state quantum light in a programmable linear photonic circuit

Nature Communications
Non-Hermitian quantum systems, governed by nonunitary evolution, offer powerful tools for manipulating quantum states through engineered loss. A prime example is coherent absorption, where quantum states undergo phase-dependent partial or complete ...
Govind Krishna, Jun Gao, Sam O’Brien, Rohan Yadgirkar, Venkatesh Deenadayalan, Stefan Preble, Val Zwiller, Ali W. Elshaari   +7 more
doaj   +1 more source

Nonlinearities in silicon optical fibers [PDF]

, 2011
The nonlinear propagation characteristics in a hydrogenated amorphous silicon core optical fiber are investigated to demonstrate ultra-fast all-optical switching by cross-absorption ...
Day, T.D., Peacock, A.C., J. V. Badding, Sazio, P.J.A., P. J. A. Sazio, N. Healy, Watts, R.T., R. T. Watts, Sparks, J.R., Slavík, R., R. Slavík, A. C. Peacock, J. R. Sparks, Mehta, P., Healy, N., Badding, J.V., P. Mehta, T. D. Day   +17 more
core   +1 more source