K
K. Chandrasekharan
Researcher at National Institute of Technology Calicut
Publications - 47
Citations - 1321
K. Chandrasekharan is an academic researcher from National Institute of Technology Calicut. The author has contributed to research in topics: Z-scan technique & Nonlinear optics. The author has an hindex of 20, co-authored 44 publications receiving 1139 citations. Previous affiliations of K. Chandrasekharan include Indian Institute of Technology Madras & National Institute of Technology, Karnataka.
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ESR spectroscopic studies on free radical quenching action of finger millet (Eleusine coracana)
TL;DR: The free radical quenching action of finger millet (Eleusine coracana) on 1,1′-diphenyl-2-picrylhydrazyl (5.407×1017 spins/ml−1) radicals was studied by electron spin resonance (ESR) spectrometry as discussed by the authors.
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Third order nonlinear optical properties and two photon absorption in newly synthesized phenyl sydnone doped polymer
TL;DR: In this paper, the authors investigated third order nonlinear optical properties of three newly synthesized 3-phenyl sydnones, doped into PMMA and determined both real and imaginary part of χ (3).
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Third order nonlinear optical properties and optical limiting in donor/acceptor substituted 4′-methoxy chalcone derivatives
TL;DR: In this article, the third order nonlinear optical properties of 4′-methoxy chalcone and its derivatives were investigated using a single-beam Z-scan technique with nanosecond laser pulses at 532 nm.
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Studies on nonlinear optical parameters of bis-chalcone derivatives doped polymer
Seetharam Shettigar,K. Chandrasekharan,G. Umesh,Balladka Kunhanna Sarojini,Badiadka Narayana +4 more
TL;DR: In this paper, two bis-chalcone derivatives, 1,5-[di(4-methoxyphenyl)]penta-1,4-dien-3-one and 1, 5-[di (4-chlorophenyl]penta]-1, 4-dimethylhexyl hexylhexylhexylon, were synthesized using Z-scan technique using 7ns laser pulses at 532nm.
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χ(3) measurements and optical limiting in dibenzylideneacetone and its derivatives
A. John Kiran,K. Chandrasekharan,Satheesh Rai Nooji,H.D. Shashikala,G. Umesh,Balakrishna Kalluraya +5 more
TL;DR: In this paper, the authors investigated the third order nonlinear optical properties of dibenzylidene acetone (1,5-diphenyl-1, 4-pentadeine-3-one) and its derivatives using single beam Z-scan technique with Q-switched Nd:YAG nanosecond laser pulses at 532nm.