Results 1 to 10 of about 6,279,893 (294)
Applied Sciences, 2022 The pulsed laser has gradually become the standard method of studying the single-event effects of micro-nano devices, and it is a powerful supplement to heavy ion experiments on single-event effects.
Heng An +6 more
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Single-photon absorption and emission from a natural photosynthetic complex. [PDF]
Nature, 2023 AbstractPhotosynthesis is generally assumed to be initiated by a single photon1–3 from the Sun, which, as a weak light source, delivers at most a few tens of photons per nanometre squared per second within a chlorophyll absorption band1. Yet much experimental and theoretical work over the past 40 years has explored the events during photosynthesis ...
Li Q +8 more
europepmc +6 more sources
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
doaj +3 more sources
Emulation of coherent absorption of Fock-state quantum light in a programmable linear photonic circuit [PDF]
Nature CommunicationsNon-Hermitian quantum systems, governed by nonunitary evolution, offer powerful tools for manipulating quantum states through engineered loss. A prime example is coherent absorption, where quantum states undergo phase-dependent partial or complete ...
Govind Krishna +7 more
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On the application of Two-Photon Absorption for Laser Fault Injection attacks
Transactions on Cryptographic Hardware and Embedded Systems, 2022 Laser Fault Injection (LFI) is considered to be the most powerful semiinvasive fault injection method for implementation attacks on security devices. In this work we discuss for the first time the application of the nonlinear Two-Photon Absorption (TPA)
Bodo Selmke +7 more
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Is orange carotenoid protein photoactivation a single-photon process?
Biophysical Reports, 2022 In all published photoactivation mechanisms of orange carotenoid protein (OCP), absorption of a single photon by the orange dark state starts a cascade of red-shifted OCP ground-state intermediates that subsequently decay within hundreds of milliseconds,
Stanisław Niziński +5 more
doaj +1 more source
Photon number resolution without optical mode multiplication
Nanophotonics, 2023 Common methods to achieve photon number resolution rely on fast on-off single-photon detectors in conjunction with temporal or spatial mode multiplexing.
Vetlugin Anton N. +3 more
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Frontiers in Nanotechnology, 2022 Electronic and optical properties of single-layer and bilayer armchair graphene nanoribbons are investigated using a first-principles method. Increased nanoribbon width reduces the band gap and causes a red shift in photon absorption energy.
Yijun Ge, Timothy S. Fisher
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Comparing confocal and two-photon Ca2+ imaging of thin low-scattering preparations
Biophysical Reports, 2023 Ca2+ imaging provides insight into biological processes ranging from subcellular dynamics to neural network activity. Two-photon microscopy has assumed a dominant role in Ca2+ imaging.
Jinbo Cheng +3 more
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An On-Chip Photon-Counting Reconstructive Spectrometer with Tailored Cascaded Detector Array
Advanced Devices & Instrumentation, 2023 The hybrid integration of superconducting nanowire single-photon detectors (SNSPDs) on various substrates and photonic structures has great potential on developing complicated photonic devices based on single-photon detections, such as photon-counting ...
Jingyuan Zheng +9 more
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