Results 11 to 20 of about 20,471,971 (245)

Witnessing entangled two-photon absorption via quantum interferometry

APL Photonics, 2023
Recent investigations have suggested that the use of non-classical states of light, such as entangled photon pairs, may open new and exciting avenues in experimental two-photon absorption spectroscopy.
Áulide Martínez-Tapia, Samuel Corona-Aquino, Freiman Triana-Arango, Chenglong You, Rui-Bo Jin, Omar S. Magaña-Loaiza, Shi-Hai Dong, Alfred B. U’Ren, Roberto de J. León-Montiel   +8 more
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

Nonlinear optical thresholding in a 4-Channel OCDMA system via two-photon absorption [PDF]

, 2009
We demonstrate the use of a Two-Photon Absorption based detector in an OCDMA system.
K. J. Dexter, Petropoulos, P., Richardson, D.J., Dexter, Karl J., Reid, Douglas A., Reid, D.A., Barry, Liam P., Dexter, K.J., D. J. Richardson, Barry, L.P., D. A. Reid, L. P. Barry, P. Petropoulos   +12 more
core   +3 more sources

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, Jinchong Xiao, Xingzhi Wu, Yuxiao Wang, Xueru Zhang, Yinglin Song   +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, Zeng Ganying, Zhang Renyan, Tang Yuxiang, Liu Qirui, Jiang Tian   +5 more
doaj   +1 more source

Experimental feasibility of molecular two-photon absorption with isolated time-frequency-entangled photon pairs

Physical Review Research, 2021
Entangled photon pairs have promised to deliver a substantial quantum advantage for two-photon absorption spectroscopy. However, recent work has challenged the previously reported magnitude of quantum enhancement in two-photon absorption.
Tiemo Landes, Markus Allgaier, Sofiane Merkouche, Brian J. Smith, Andrew H. Marcus, Michael G. Raymer   +5 more
doaj   +1 more source

Degenerate and Non-Degenerate Two-Photon Absorption of Coumarin Dyes [PDF]

, 2023
Two-photon absorption (2PA) spectroscopy is a robust bioimaging tool that depends on the determined cross sections (σ2PA). The absorption of both photons occurs simultaneously with equivalent (degenerate) or different (non-degenerate) photon energies, D ...
Ismael A., Elayan, Alex, Brown, Ismael A. Elayan, Alex Brown   +3 more
core   +2 more sources

All-optical sampling utilising two-photon absorption in semiconductor microcavity [PDF]

, 2005
A highly-efficient optical sampling system based on Two-Photon Absorption in a semiconductor micro-cavity is presented.
Krug, T., Maguire, Paul, J., Donegan, John Francis, Folliot, Hervé, Donegan, J.F., Barry, Liam,, Bradley, A.L., Folliot, H., Lynch, M., Barry, Liam P., Lynch, Michael, Bradley, Ann Louise, Maguire, Paul,, Maguire, Paul J., Barry, Liam, P.   +14 more
core   +2 more sources

Experimental and computational data on two-photon absorption and spectral deconvolution of the upper excited states of dye IR780

Data in Brief, 2021
Evaluating candidates for novel materials with high nonlinear absorption properties for applications as biomarkers is a very important field of research.
Luis Guillermo Mendoza-Luna, Cesar A. Guarin, Emmanuel Haro-Poniatowski, José Luis Hernández-Pozos   +3 more
doaj   +1 more source

Chromatic dispersion monitoring of 80-Gb/s OTDM data signal via two-photon absorption in a semiconductor microcavity [PDF]

, 2007
In this letter, a novel method of chromatic dispersion monitoring via two-photon absorption (TPA) is investigated. A specially designed semiconductor microcavity is employed as a TPA detector for monitoring data signals operating at rates up to 80Gb/s ...
Guo, Wei Hua, O\u27Dowd, John, O'Dowd, John, Donegan, John Francis, Folliot, Hervé, Donegan, J.F., O'Dowd, J., Bradley, A.L., Guo, W.H., Maguire, P. J., Folliot, H., Lynch, M., Barry, Liam P., Bondarczuk, Krzysztof, Lynch, Michael, Barry, L.P., Bondarczuk, K., Bradley, Ann Louise, Maguire, Paul J.   +18 more
core   +2 more sources