Results 21 to 30 of about 931,327 (325)
Two-Photon Absorption: An Open Door to the NIR-II Biological Window? [PDF]
Front Chem, 2022 The way in which photons travel through biological tissues and subsequently become scattered or absorbed is a key limitation for traditional optical medical imaging techniques using visible light.
Shaw PA +5 more
europepmc +2 more sources
Rashba splitting in organic-inorganic lead-halide perovskites revealed through two-photon absorption spectroscopy. [PDF]
Nat Commun, 2022 The Rashba splitting in hybrid organic–inorganic lead–halide perovskites (HOIP) is particularly promising and yet controversial, due to questions surrounding the presence or absence of inversion symmetry.
Lafalce E +5 more
europepmc +2 more sources
Entangled two-photon absorption by atoms and molecules: A quantum optics tutorial. [PDF]
Journal of Chemical Physics, 2021 Two-photon absorption (TPA) and other nonlinear interactions of molecules with time-frequency-entangled photon pairs have been predicted to display a variety of fascinating effects.
M. Raymer, Tiemo Landes, A. Marcus
semanticscholar +1 more source
Quantifying the enhancement of two-photon absorption due to spectral-temporal entanglement. [PDF]
Optics Express, 2021 When a low flux of time-frequency-entangled photon pairs (EPP) illuminates a two-photon transition, the rate of two-photon absorption (TPA) can be enhanced considerably by the quantum nature of photon number correlations and frequency correlations.
Tiemo Landes +5 more
semanticscholar +1 more source
Chemical Society Reviews, 2021 This work provides an overview of the recent advances in the field of two-photon absorbing chromophores active in the short-wavelength infrared (SWIR) spectral range.
S. Pascal +3 more
semanticscholar +1 more source
Study of two-photon absorption and optical limiting
Bibechana, 2021 Simultaneous absorption of two photons of identical or different frequencies to excite a system that is atom or molecule from the ground state to excited state has great importance.
Bal Ram Ghimire
doaj +3 more sources
Photoinduced charge transfer in two-photon absorption
Results in Optics, 2021 The visual method is used to theoretically discuss the influence of different external electric fields on the photo-induced charge transfer of the donor-bridge-acceptor (D-B-A) system in the two-photon absorption (TPA).
Siyuan Zhu, Mengtao Sun
doaj +1 more source
Two-photon absorption in halide perovskites and their applications.
Materials Horizons, 2022 Active research on halide perovskites has given us a deep understanding of this family of materials and their potential for applications in advanced optoelectronic devices.
Junsheng Chen, Wei Zhang, T. Pullerits
semanticscholar +1 more source
Synthesis and Ultrafast Broadband Optical Limiting Properties of a Two-Branched Twistacene
Molecules, 2022 A novel two-branched twistacene (PyDN) has been designed and synthesized for application on ultrafast optical limiting. This twistacene exhibits excellent two photon absorption and two photon absorption-induced excited singlet state absorption, which was
Yanbing Han +5 more
doaj +1 more source
Tunable nonlinear optical responses of few-layer graphene through lithium intercalation
Nanophotonics, 2021 Intercalation has been demonstrated to be a powerful tool for tuning the physical and chemical properties of two-dimensional (2D) materials, providing the highest possible doping level and an ideal system to study various electronic states. In this work,
Zhang Chenxi +5 more
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