Results 11 to 20 of about 379,398 (143)
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
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Quantum metrology of two-photon absorption
Physical Review Research, 2021 Two-photon absorption (TPA) is of fundamental importance in super-resolution imaging and spectroscopy. Its nonlinear character allows for the prospect of using quantum resources, such as entanglement, to improve measurement precision or to gain new ...
Carlos Sánchez Muñoz +2 more
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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
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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
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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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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 +5 more
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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 +8 more
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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 +3 more
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Molecules, 2021 The use of two-photon absorption (TPA) for such applications as microscopy, imaging, and photodynamic therapy (PDT) offers several advantages over the usual one-photon excitation.
Emma Robbins +4 more
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Photonics, 2022 The fluorescence anisotropy of photosensitizers Radachlorin and chlorin e6 was studied using the time-resolved single photon-counting technique under one- and two-photon excitation within the Soret absorption band.
Ioanna A. Gorbunova +6 more
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