Molecular Design of Synthetic Polypeptides for Nonlinear Optics,

Abstract

Second order molecular susceptibilities B of Poly (y benzyl L-glutamate)(PBLG) and poly(y -p-nitrobenzyl Lglutamate) (PNBLG) were determined by means of dc-induced second harmonic generation (dc-SHG) technique in solutions at a wavelength of 1064nm as 1.5x10-29 esu and -4.9xlO-29 esu, respectively. Among PBLG, PNBLG and nitrobenzene, it was found that only PNBLG has negative value of B. It follows that the effect of nitrophenyl groups in side chains is dominant for B whereas the contribution of carbonyl groups in main chain is dominant for the permanent dipole moment u in PNBLG.

Document Details

Document Type
Technical Report
Publication Date
Feb 01, 1991
Accession Number
ADP007466

Entities

People

  • A. Yamada
  • A.f. Garito
  • H. Sasabe
  • T. Ishii
  • T. Wada

Organizations

  • University of Pennsylvania

Tags

DTIC Thesaurus Topics

  • Chemical Compounds
  • Demographic Cohorts
  • Determinants (Mathematics)
  • Dipole Moments
  • Glutamates
  • Massachusetts
  • Materials
  • Nitrobenzenes
  • Nonlinear Optics
  • Optics
  • Second Harmonic Generation

Fields of Study

  • Chemistry

Readers

  • Organic Chemistry
  • Polymer Science and Technology