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Two-photon Lau effect

Optics Letters, 2013
The Lau effect is an interference phenomenon in which two transmission gratings are located in tandem and illuminated incoherently. Here we report the experimental observation of the quantum Lau effect using a two-photon entangled source. Two experimental schemes are proposed and performed.
De-Qin, Xu   +4 more
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Two-photon spectroscopy in AgCl

Solid State Communications, 1980
Two-photon absorption constant β(2) has been measured in the indirect gap of AgCl between 4 and 4.4 eV. The absorption constant has been derived from the excitation spectrum of the recombination luminescence. The absolute value of β(2) is in fair agreement with that calculated for a two-photon phonon-assisted transition.
CASALBONI, MAURO   +3 more
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Perspective on Water-Soluble Two-Photon Initiator for Two-Photon Polymerization

ACS Applied Materials & Interfaces
Two-photon polymerization (TPP) as an unparalleled technology empowers the rapid prototyping of customized three-dimensional (3D) micro/nanostructures, garnering noticeable interest in tissue engineering, drug delivery, and regenerative medicine.
Fan-Chun Bin, Mei-Ling Zheng
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Two-Photon Photoelectric Effect

Physical Review, 1962
The surface photoelectric current from a pure metal surface is calculated when the frequency of the incident radiation is less than the threshold frequency but greater than one-half the threshold frequency. To do this, second-order stationary perturbation theory is used. The current thus found is normally small.
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Chemical Two-Photon Uncaging

Cold Spring Harbor Protocols, 2007
INTRODUCTIONChemical two-photon uncaging is useful for a wide range of applications, including both mapping of receptor location and localized photostimulation of neurons via activation of excitatory glutamate receptors. Experimental preparations could include brain slices, cultured neurons, and, among other possibilities, whole brains in vivo.
Diana L, Pettit, George J, Augustine
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Solitons and two-photon absorption

Optics Letters, 1990
The effect of weak two-photon absorption on soliton propagation is investigated. It is found that fundamental solitons evolve adiabatically; expressions describing their broadening and attenuation are given. Higher-order solitons break up into two diverging fundamental solitons for a wide range of parameters.
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Two-photon laser dynamics

Physical Review A, 1995
Degenerate as well as nondegenerate three-level two-photon laser (TPL) models are derived. In the limit of equal cavity losses for both fields, it is shown that the nondegenerate model reduces to the degenerate one. We also demonstrate the isomorphism existing between our degenerate TPL model and that of a dressed-state TPL. All these models contain ac-
, de Valcárcel GJ   +3 more
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Retardation in two-photon absorption

Physical Review A, 1989
Previous calculations of two-photon absorption and emission in hydrogen have revealed frequencies at which the transition is forbidden, at least within the approximations made. Here we show that if retardation is taken into account these so-called ''transparency frequencies'' are slightly shifted, but the zero transition amplitude persists.
, Yang, , Chan, , Lieber
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TWO-PHOTON–INDUCED FLUORESCENCE

Annual Review of Physical Chemistry, 1997
▪ Abstract  Nonresonant two-photon electronic spectroscopy of polyatomic molecules is reviewed for the period since 1979. Emphasis is placed on studies that expose patterns in the two-photon fluorescence (also ionization, optoacoustic) excitation spectra of aromatic hydrocarbons and the effect of vibrations and substitution, particularly within the ...
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Clinical two‐photon microendoscopy

Microscopy Research and Technique, 2007
AbstractTwo‐photon medical imaging has found its way into dermatology as an excellent method for noninvasive skin cancer detection without need of contrast agents as well as for in situ drug screening of topically‐applied cosmetical and pharmaceutical components.
K, König   +5 more
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