Results 11 to 20 of about 174,035 (261)

Synthesis and Ultrafast Broadband Optical Limiting Properties of a Two-Branched Twistacene

open access: yesMolecules, 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

open access: yesNanophotonics, 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
doaj   +1 more source

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

open access: yesPhysical 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
doaj   +1 more source

Witnessing entangled two-photon absorption via quantum interferometry

open access: yesAPL 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   +1 more source

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

open access: yesData 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
doaj   +1 more source

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

open access: yes, 2005
A highly-efficient optical sampling system based on Two-Photon Absorption in a semiconductor micro-cavity is presented.
Krug, T.   +14 more
core   +1 more source

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

open access: yes, 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   +18 more
core   +1 more source

Prospects for More Efficient Multi-Photon Absorption Photosensitizers Exhibiting Both Reactive Oxygen Species Generation and Luminescence

open access: yesMolecules, 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
doaj   +1 more source

Dispersion monitoring for high-speed WDM networks via two-photon absorption in a semiconductor microcavity [PDF]

open access: yes, 2006
Due to the continued demand for bandwidth, network operators have to increase the data rates at which individual wavelengths operate at. As these data rates will exceed 100 Gbit/s in the next 5-10 years, it will be crucial to be able to monitor and ...
Guo, Wei Hua   +26 more
core   +1 more source

Entangled two-photon absorption spectroscopy with varying pump wavelength [PDF]

open access: yes, 2021
In virtual-state spectroscopy, information about the energy-level structure of an arbitrary sample is retrieved by Fourier transforming sets of measured two-photon absorption probabilities of entangled photon pairs where the degree of entanglement and ...
Mertenskötter, Lutz   +3 more
core   +1 more source

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