Premium
Synthesis and nonlinear optical characterization of copolymers containing alternating 3,4‐dialkoxythiophene and (1,3,4‐oxadiazolyl)benzene units
Author(s) -
Udayakumar D.,
Kiran A. John,
Adhikari A. V.,
Chandrasekharan K.,
Shashikala H. D.
Publication year - 2007
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.25505
Subject(s) - copolymer , materials science , benzene , nanosecond , z scan technique , characterization (materials science) , refractive index , nonlinear optics , polymer chemistry , fluorescence , saturation (graph theory) , absorption (acoustics) , laser , photochemistry , analytical chemistry (journal) , optics , optoelectronics , chemistry , polymer , nanotechnology , organic chemistry , composite material , physics , mathematics , combinatorics
We report the synthesis and linear and third‐order nonlinear optical (NLO) characterization of two novel copolymers containing alternating 3,4‐dialkoxythiophene and 1,4‐bis(1,3,4‐oxadiazolyl)benzene units. The copolymers were synthesized with a precursor polyhydrazide route. Both copolymers exhibited fluorescence around 430 nm under the irradiation of UV light. The NLO measurements were made with the single‐beam Z‐scan technique with Nd:YAG nanosecond laser pulses at 532 nm. The nonlinear refractive index of the investigated copolymers was negative, and the magnitude was as high as 10 −10 esu. The samples exhibited strong reverse saturation absorption and very good optical limiting properties at the wavelength used. The concentration dependence of third‐order NLO parameters was studied. © 2007 Wiley Periodicals, Inc. J Appl Polym Sci, 2007
Accelerating Research
Robert Robinson Avenue,
Oxford Science Park, Oxford
OX4 4GP, United Kingdom
Address
John Eccles HouseRobert Robinson Avenue,
Oxford Science Park, Oxford
OX4 4GP, United Kingdom