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Conjugated Polycyanines: A New Class of Materials with Large Third‐Order Optical Nonlinearities
Author(s) -
Li Zhong'an,
Ensley Trenton R.,
Hu Honghua,
Zhang Yadong,
Jang SeiHum,
Marder Seth R.,
Hagan David J.,
Van Stryland Eric W.,
Jen Alex K.Y.
Publication year - 2015
Publication title -
advanced optical materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.89
H-Index - 91
ISSN - 2195-1071
DOI - 10.1002/adom.201400631
Subject(s) - cyanine , conjugated system , materials science , salt (chemistry) , polymer , silicon , order (exchange) , optoelectronics , optics , chemistry , physics , composite material , finance , economics , fluorescence
A fully conjugated polycyanine (AJMPC02) showing a very large Re( γ ) value of −9.0 × 10 −57 mks at 1.3 μm is synthesized. It is used as a host polymer for anionic TCF‐cyanines for creating a complementary polymeric cyanine salt complex, which exhibits a Re( γ ) value of −5.6 × 10 −57 mks at 1.3 μm. A good optical quality thin film based on AJMPC02‐TCF gives a Re( γ ) value of −2.1 × 10 −18 mks at 1.3 μm and −8.5 × 10 −19 mks at 1.55 μm, which are among the highest values reported for molecular materials, and much higher than those derived from silicon.