Results 31 to 40 of about 379,398 (143)

Measurement of transient strain induced by two-photon excitation

Physical Review Research, 2020
By ultrafast x-ray diffraction we quantify the strain from coherent and incoherent phonons generated by one- and two-photon absorption. We investigated the ferrimagnetic insulator bismuth-doped yttrium iron garnet, which is a workhorse for laser-induced ...
S. P. Zeuschner, J.-E. Pudell, A. von Reppert, M. Deb, E. Popova, N. Keller, M. Rössle, M. Herzog, M. Bargheer   +8 more
doaj   +1 more source

Full Quantum Analysis of Two-Photon Absorption Using Two-Photon Wavefunction: Comparison with One-Photon Absorption

, 2009
For dissipation-free photon-photon interaction at the single photon level, we analyze one-photon transition and two-photon transition induced by photon pairs in three-level atoms using two-photon wavefunctions.
Agarwal G. S., Arfken G. B., Blow K. J., Boto A. N., Ezaki H., Fei H.-B., Folliot H., Franson J. D., Franson J. D., Jacobs B. C., Javanainen J., Kang H., Koshino K., Koshino K., Loudon R., Nakanishi T., Rubin M. H., Schmidt H., Shih Y., Tomita A.   +19 more
core   +1 more source

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

, 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., Brinkley, M. K., Clader, B. D.   +2 more
core   +1 more source

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

, 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., Bondarczuk, Krzysztof, Bradley, Ann Louise, Donegan, John Francis, Flood, Edward, Guo, Wei Hua, Lynch, Michael, Maguire, Paul J., O'Dowd, John, Quinlan, Tom   +9 more
core   +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

, 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, Amili, Abdelkrim El, Kervella, Gaël   +2 more
core   +4 more sources

Femtosecond Optical Nonlinearity of Nanodiamond Suspensions

Applied 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, Viatcheslav V. Vanyukov, Tatyana N. Mogileva, Konstantin G. Mikheev, Alexander N. Aleksandrovich, Nicholas A. Nunn, Olga A. Shenderova   +6 more
doaj   +1 more source

Efficient single photon absorption by a trapped moving atom

, 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, Leuchs, Gerd, Trautmann, Nils   +2 more
core   +1 more source

Two-photon absorption of Tl1-xIn1-xSnxSe2 nanocrystallites

EPJ 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, Parasyuk Oleg, Piskach Ludmila, Alzayed Nasser Saleh, Prokhorenko Serhii, Piasecki Michal, Kityk Iwan   +6 more
doaj   +1 more source

Coherent absorption of N00N states [PDF]

, 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, Giovannini, Daniel, Jeffers, John, Lyons, Ashley, Padgett, Miles, Restuccia, Sara, Roger, Thomas, Romero, Jacquiline   +7 more
core   +3 more sources

Linear and Nonlinear Photon-Induced Cross Bridge/Space Charge Transfer in STC Molecular Crystals

Nanomaterials, 2022
In this work, we theoretically studied the optical absorption properties of a layer-stacked cocrystal heterogeneous material Spe-TCNB cocrystal (STC) which is produced by supramolecular self-assembly of organic conjugated monomers SPE and TCNB.
Chen Lu, Jing Yu, Hao Sheng, Yongjian Jiang, Fengyang Zhao, Jingang Wang   +5 more
doaj   +1 more source