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Terahertz Generators: Terahertz Phonon Mode Engineering of Highly Efficient Organic Terahertz Generators (Adv. Funct. Mater. 14/2017)
Author(s) -
Lee SeungHeon,
Kang Bong Joo,
Yoo BaWool,
Lee SeungChul,
Lee SeungJun,
Jazbinsek Mojca,
Yun Hoseop,
Rotermund Fabian,
Kwon OPil
Publication year - 2017
Publication title -
advanced functional materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 6.069
H-Index - 322
eISSN - 1616-3028
pISSN - 1616-301X
DOI - 10.1002/adfm.201770085
Subject(s) - terahertz radiation , materials science , absorption (acoustics) , optoelectronics , phonon , hydrogen bond , terahertz spectroscopy and technology , salt (chemistry) , molecule , condensed matter physics , chemistry , organic chemistry , composite material , physics
In article number 1605583, Fabian Rotermund, O‐Pil Kwon, and co‐workers present new organic electro‐optic quinolinium salt crystals exhibiting high optical‐to‐terahertz (THz) conversion efficiencies. Large optical nonlinearity and lower THz absorption form the basis for this high efficiency. This basis is achieved by suppressing the THz vibrational modes by introduction of strongly electronegative groups acting as strong hydrogen‐bond acceptor sites into molecular anions.