Results 51 to 60 of about 931,327 (325)

Two-Photon Absorption in Gapped Bilayer Graphene with a Tunable Chemical Potential

open access: yes, 2016
Despite the now vast body of two-dimensional materials under study, bilayer graphene remains unique in two ways: it hosts a simultaneously tunable band gap and electron density; and stems from simple fabrication methods.
Abergel, D. S. L.   +2 more
core   +1 more source

Suppression of residual single-photon absorption relative to two-photon absorption in high finesse planar microcavities [PDF]

open access: yes, 2008
Suppression of residual single-photon absorption (SPA) relative to two-photon absorption (TPA) in a high finesse GaAs planar microcavity is explored. The TPA photocurrent becomes larger than the SPA photocurrent as long as the incident continuous-wave ...
Barry, Liam P.   +9 more
core   +1 more source

Two-Photon Absorption-Based Upconverted Circularly Polarized Luminescence Generated in Chiral Perovskite Nanocrystals.

open access: yesJournal of Physical Chemistry Letters, 2019
Upconverted circularly polarized luminescence (UCPL) processes have attracted great interest, because the chiroptical properties could be expressed in different photophysical processes.
Wenjie Chen   +7 more
semanticscholar   +1 more source

Experimental evidence and theoretical modeling of two-photon absorption dynamics in the reduction of intensity noise of solid-state Er:Yb lasers

open access: yes, 2013
A theoretical and experimental investigation of the intensity noise reduction induced by two-photon absorption in a Er,Yb:Glass laser is reported. The time response of the two-photon absorption mechanism is shown to play an important role on the behavior
Alouini, Mehdi   +2 more
core   +4 more sources

Two-photon indirect absorption in GaSe

open access: yesJournal of Physics: Conference Series, 2008
Two-photon absorption (TPA) in GaSe is detected in the narrow (about kT) spectral range above the indirect exciton energy for E⊥c light polarization. The appearance of TPA enhancement within narrow spectral region links to the resonant Raman scattering and anti-Stockes photoluminescence previously identified in GaSe. Extracted TPA coefficient is of the
Grivickas, V.   +3 more
openaire   +2 more sources

Femtosecond Optical Nonlinearity of Nanodiamond Suspensions

open access: yesApplied Sciences, 2021
High pressure-high temperature (HP-HT) nanodiamonds and detonation nanodiamonds have unique optical properties and are promising materials for various applications in photonics.
Gennady M. Mikheev   +6 more
doaj   +1 more source

Efficient single photon absorption by a trapped moving atom

open access: yes, 2016
The influence of the center of mass motion of a trapped two level system on efficient resonant single photon absorption is investigated. It is shown that this absorption process depends strongly on the ratio between the characteristic time scales of ...
Alber, Gernot   +2 more
core   +1 more source

Two-photon absorption of Tl1-xIn1-xSnxSe2 nanocrystallites

open access: yesEPJ Web of Conferences, 2017
Novel materials for the infrared two-photon absorption — Tl1-xIn1-xSnxSe2 single crystals (x = 0.1,0.2) were grown. Two-photon absorption (TPA) was studied at CO2 laser wave-length 9.4μm with pulse duration 1μs.
Myronchuk Galyna   +6 more
doaj   +1 more source

Coherent absorption of N00N states [PDF]

open access: yes, 2016
Recent results in deeply subwavelength thickness films demonstrate coherent control and logical gate operations with both classical and single-photon light sources.
Faccio, Daniele   +7 more
core   +3 more sources

Polymer Nanostructuring by Two-Photon Absorption [PDF]

open access: yes, 2019
Two-photon polymerization (2PP) is an innovative technology that in recent years showed a tremendous potential for three-dimensional structuring of photopolymers at the submicron scale. It is based on the nonlinear absorption of ultrashort laser pulses in transparent photosensitive materials.
Zandrini, Tommaso   +5 more
openaire   +4 more sources

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