Spectrally- and polarization-resolved hyper-Rayleigh scattering measurements with polarization-insensitive detection

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11310%2F17%3A10367287" target="_blank" >RIV/00216208:11310/17:10367287 - isvavai.cz</a>

Alternative codes found

RIV/00216208:11320/17:10367287

Result on the web

<a href="http://dx.doi.org/10.1016/j.optcom.2016.10.072" target="_blank" >http://dx.doi.org/10.1016/j.optcom.2016.10.072</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.optcom.2016.10.072" target="_blank" >10.1016/j.optcom.2016.10.072</a>

Result language

angličtina

Original language name

Spectrally- and polarization-resolved hyper-Rayleigh scattering measurements with polarization-insensitive detection

Original language description

Determination of the molecular first hyperpolarizability by hyper-Rayleigh scattering (HRS) is usually significantly complicated by a presence of the multiphoton excited fluorescence which has to be separated from HRS to obtain a meaningful values of the hyperpolarizability. We show, by performing a spectrally-resolved measurement, that the intensity and spectral shape of the fluorescence can depend strongly on the fundamental laser wavelength. Consequently, a properly selected excitation wavelength can significantly simplify the process of separation of HRS from the detected signal. We tested the developed experimental setup with a polarization-insensitive detection by measuring HRS generated in water and in aqueous solutions of 2-aminopyrimidine (AMP) and its monocation (HAMP). The effective hyperpolarizability of AMP and HAMP was measured experimentally and compared with that obtained by quantum chemical calculations. The polarization-resolved HRS measurement was performed for AMP and the experimentally obtained depolarization ratio agrees well with that predicted theoretically, which confirms that routine density functional theory computations of static hyperpolarizability tensor components can be considered as a sufficient approach suitable for non-interacting molecules dissolved in water.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

10306 - Optics (including laser optics and quantum optics)

Project

<a href="/en/project/GA14-05506S" target="_blank" >GA14-05506S: Crystal engineering of novel molecular crystals for non-linear optics</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2017

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Optics Communications

ISSN

0030-4018

e-ISSN

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Volume of the periodical

388

Issue of the periodical within the volume

09 November 2016

Country of publishing house

NL - THE KINGDOM OF THE NETHERLANDS

Number of pages

8

Pages from-to

21-28

UT code for WoS article

000391205700003

EID of the result in the Scopus database

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