Structure-function relationships of second hyperpolarizabilities in two-dimensional molecules

Lin X. Chen; Braja K. Mandal; Bipin Bihari; A. K. Sinha; Manjunath Kamath

Structure-function relationships of second hyperpolarizabilities in two-dimensional molecules

Lin X. Chen^*, Braja K. Mandal, Bipin Bihari, A. K. Sinha, Manjunath Kamath

^*Corresponding author for this work

Chemistry

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

9 Scopus citations

Abstract

The enhancement of the third order susceptibilities χ ⁽³⁾ and second order molecular hyperpolarizabilites < γ > in a series of convenlently stacked dimer and trimer macrocycles (SiPc and SiNc) was observed through the phase conjugated signals from DFWM measurements at both 1064 and 532 nm. The FWHM of the phase conjugated signals at 532 nm is much smaller than those at 1064 nm and those of the reference compound CS ₂. The < γ > values at both wavelengths as a function of number of the monomer units (n) have an approximate n ³ dependence, differing only in the scaling constant. The origin of such enhancement is discussed and compared to those in 1D π-conjugated systems.

Original language	English (US)
Title of host publication	Proceedings of SPIE - The International Society for Optical Engineering
Editors	Gustaaf R. Moehlmann
Pages	61-70
Number of pages	10
Volume	2527
State	Published - Dec 1 1995
Event	Nonlinear Optical Properties of Organic Materials VIII - San Diego, CA, USA Duration: Jul 11 1995 → Jul 13 1995

Other

Other	Nonlinear Optical Properties of Organic Materials VIII
City	San Diego, CA, USA
Period	7/11/95 → 7/13/95

ASJC Scopus subject areas

Electrical and Electronic Engineering
Condensed Matter Physics

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title = "Structure-function relationships of second hyperpolarizabilities in two-dimensional molecules",

abstract = "The enhancement of the third order susceptibilities χ (3) and second order molecular hyperpolarizabilites < γ > in a series of convenlently stacked dimer and trimer macrocycles (SiPc and SiNc) was observed through the phase conjugated signals from DFWM measurements at both 1064 and 532 nm. The FWHM of the phase conjugated signals at 532 nm is much smaller than those at 1064 nm and those of the reference compound CS 2. The < γ > values at both wavelengths as a function of number of the monomer units (n) have an approximate n 3 dependence, differing only in the scaling constant. The origin of such enhancement is discussed and compared to those in 1D π-conjugated systems.",

author = "Chen, {Lin X.} and Mandal, {Braja K.} and Bipin Bihari and Sinha, {A. K.} and Manjunath Kamath",

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Structure-function relationships of second hyperpolarizabilities in two-dimensional molecules. / Chen, Lin X.; Mandal, Braja K.; Bihari, Bipin; Sinha, A. K.; Kamath, Manjunath.

Proceedings of SPIE - The International Society for Optical Engineering. ed. / Gustaaf R. Moehlmann. Vol. 2527 1995. p. 61-70.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

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T1 - Structure-function relationships of second hyperpolarizabilities in two-dimensional molecules

AU - Chen, Lin X.

AU - Mandal, Braja K.

AU - Bihari, Bipin

AU - Sinha, A. K.

AU - Kamath, Manjunath

PY - 1995/12/1

Y1 - 1995/12/1

N2 - The enhancement of the third order susceptibilities χ (3) and second order molecular hyperpolarizabilites < γ > in a series of convenlently stacked dimer and trimer macrocycles (SiPc and SiNc) was observed through the phase conjugated signals from DFWM measurements at both 1064 and 532 nm. The FWHM of the phase conjugated signals at 532 nm is much smaller than those at 1064 nm and those of the reference compound CS 2. The < γ > values at both wavelengths as a function of number of the monomer units (n) have an approximate n 3 dependence, differing only in the scaling constant. The origin of such enhancement is discussed and compared to those in 1D π-conjugated systems.

AB - The enhancement of the third order susceptibilities χ (3) and second order molecular hyperpolarizabilites < γ > in a series of convenlently stacked dimer and trimer macrocycles (SiPc and SiNc) was observed through the phase conjugated signals from DFWM measurements at both 1064 and 532 nm. The FWHM of the phase conjugated signals at 532 nm is much smaller than those at 1064 nm and those of the reference compound CS 2. The < γ > values at both wavelengths as a function of number of the monomer units (n) have an approximate n 3 dependence, differing only in the scaling constant. The origin of such enhancement is discussed and compared to those in 1D π-conjugated systems.

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BT - Proceedings of SPIE - The International Society for Optical Engineering

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