Results 51 to 60 of about 379,398 (143)

Photon Pair Source based on PPLN‐Waveguides for Entangled Two‐Photon Absorption

Advanced Physics Research
Fluorescence excitation by absorption of entangled photon pairs offers benefits compared to classical imaging techniques, such as the attainment of higher signal levels at low excitation power while simultaneously mitigating phototoxicity.
Tobias Bernd Gäbler, Patrick Hendra, Nitish Jain, Markus Gräfe   +3 more
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Photon-photon correlations and entanglement in doped photonic crystals

, 2000
We consider a photonic crystal (PC) doped with four-level atoms whose intermediate transition is coupled near-resonantly with a photonic band-gap edge.
A. Imamoğlu, A.G. Kofman, B. Sherman, David Petrosyan, E. Paspalakis, E. Yablonovitch, E. Yablonovitch, G. Kurizki, Gershon Kurizki, H. Schmidt, H.J. Kimble, J.D. Franson, J.D. Joannopoulos, M. Fleischhauer, M.D. Lukin, M.J. Werner, M.O. Scully, P. Lambropoulos, P.R. Villeneuve, R.W. Boyd, S. Bay, S. John, S. John, S. John, S. John, S.E. Harris, S.E. Harris, S.E. Harris, T. Opatrny   +28 more
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Efficient non-degenerate two-photon excitation for fluorescence microscopy [PDF]

, 2019
Non-degenerate two-photon excitation (ND-TPE) has been explored in two-photon excitation microscopy. However, a systematic study of the efficiency of ND-TPE to guide the selection of fluorophore excitation wavelengths is missing. We measured the relative
Adams, Stephen R., Boas, David A., Devor, Anna, Fainman, Yeshaiahu, Ferri, Christopher G. L., Kiliç, Kivilcim, Rodriguez, Erik A., Sadegh, Sanaz, Saisan, Payam A., Sakadžić, Sava, Thunemann, Martin, Wei, Zhe, Yang, Mu-Han   +12 more
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One photon and two photon process in photo-decomposition of germanium oxygen deficient centres

, 1998
UV photon-induced transformation of germanium oxygen deficient centres (GODC) in germanium-doped silica glass have been studied using photocurrent measurements, absorption and fluorescence bleaching.
Alimpiev, S.S., Bagratashvili, V.N., Chernov, P.V., Dong, L., Rybaltovskii, A.O., Simanovskii, Y.O., Tsypina, S.I., Zavorotny, Y.S.   +7 more
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Energy migration in molecular assemblies:The characterisation and differentiation of two-photon mechanisms [PDF]

, 2006
Energy migration between chromophores plays a prominent role in a range of energy harvesting assemblies. Recent advances in the design and production of light-harvesting polymers have led to the synthesis of novel two-photon absorbing dendrimers.
Andrews, D. L., Bradshaw, D.S.
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Hard x-ray intensity autocorrelation using direct two-photon absorption

Physical Review Research, 2022
An intensity autocorrelation measurement is demonstrated to characterize a pulse duration of 9-keV x-ray free-electron laser (XFEL) pulses from a split-delay optical (SDO) system with four-bounce silicon 220 reflections in each branch.
Taito Osaka, Ichiro Inoue, Jumpei Yamada, Yuichi Inubushi, Shotaro Matsumura, Yasuhisa Sano, Kensuke Tono, Kazuto Yamauchi, Kenji Tamasaku, Makina Yabashi   +9 more
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Width Dependent Two-Photon Absorption in Monolayer Black Phosphorus Nanoribbons

Applied Sciences, 2019
Black phosphorus nanoribbons (BPNs) might offer alternatives to narrow-gap compound semiconductors for tunable optoelectronics in infrared region. In this work we present a quantum perturbation theory on two-photon absorption (TPA) in monolayer armchair ...
Yu Liu, Xiaobo Feng, Yonggang Qin, Qianjin Wang   +3 more
doaj   +1 more source

Two‐Photon Excited Near‐Infrared Phosphorescence Based on Secondary Supramolecular Confinement

Advanced Science, 2022
Organic phosphorescence materials have received wide attention in bioimaging for bio‐low toxicity and large Stokes. Herein, a design strategy to achieve near‐infrared (NIR) excitation and emission of organic room‐temperature phosphorescence through two ...
Xin‐Kun Ma, Xiaolu Zhou, Jing Wu, Fang‐Fang Shen, Yu Liu   +4 more
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Fast algorithm for calculating two-photon absorption spectra

, 1998
We report a numerical calculation of the two-photon absorption coefficient of electrons in a binding potential using the real-time real-space higher-order difference method.
A. Vaidyanathan, C. Cohen-Tannoudji, D. A. Drabold, D. Cotter, G. P. Banfi, Garnett W. Bryant, J. Li, J. Skilling, M. Murayama, M. Suzuki, O. F. Sankey, R. N. Silver, R. N. Silver, R. Tommasi, S. M. Oak, S. Nomura, S. Nomura, Shintaro Nomura, T. Iitaka, Tadashi Takemori, W. H. Press, Yoshinobu Aoyagi, Yoshiyuki Kurokawa   +22 more
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Quantification of nonlinear absorption in ternary As-Sb-Se chalcogenide glasses

, 2018
In this article, we studied intensity dependent third order nonlinear optical response in ternary As40Sb7Se53 and As40Sb10Se50 chalcogenide glasses by employing nanosecond Z-scan technique.
Adarsh, K. V., Aswin, J. R., Das, N., Khan, Pritam, Naik, R., Panda, A. K., Pradhan, P.   +6 more
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