TY - JOUR
T1 - Study of a poly-1,6-dicarbazolyl-2,4-hexadiyne nanocrystal film by the fifth-order electroabsorption spectroscopy
AU - Yang, Ke
AU - He, Jin An
AU - Kumar, Jayant
AU - Samuelson, Lynne A.
AU - Oshikiri, Toshiyuki
AU - Katagi, Hideyuki
AU - Kasai, Hitoshi
AU - Okada, Shuji
AU - Oikawa, Hidetoshi
AU - Nakanishi, Hachiro
AU - Tripathy, Suukant K.
PY - 2005/3
Y1 - 2005/3
N2 - Electroabsorption spectroscopy is used to investigate the fifth-order nonlinear optical property of a polydiacetylene poly-1,6-dicarbazolyl-2,4-hexadiyne [poly(DCHD)] nanocrystal film assembled by sequential ionic adsorption. The fifth-order susceptibility spectrum clearly identifies the vibrational states, i.e., the double bond and triple bond stretching, which are not resolved in the linear absorption spectrum. These vibrational energies are consistent with those obtained from poly(DCHD) bulk crystal through Raman and electroreflectance spectroscopy at low temperatures. The contributions from the vibrational states are also included in the expressions of hyperpolarizabilities for the electro-optical process. The fit of the experimental data shows excellent agreement between the model and the experiment.
AB - Electroabsorption spectroscopy is used to investigate the fifth-order nonlinear optical property of a polydiacetylene poly-1,6-dicarbazolyl-2,4-hexadiyne [poly(DCHD)] nanocrystal film assembled by sequential ionic adsorption. The fifth-order susceptibility spectrum clearly identifies the vibrational states, i.e., the double bond and triple bond stretching, which are not resolved in the linear absorption spectrum. These vibrational energies are consistent with those obtained from poly(DCHD) bulk crystal through Raman and electroreflectance spectroscopy at low temperatures. The contributions from the vibrational states are also included in the expressions of hyperpolarizabilities for the electro-optical process. The fit of the experimental data shows excellent agreement between the model and the experiment.
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U2 - 10.1364/JOSAB.22.000623
DO - 10.1364/JOSAB.22.000623
M3 - Article
AN - SCOPUS:20244371674
SN - 0740-3224
VL - 22
SP - 623
EP - 632
JO - Journal of the Optical Society of America B: Optical Physics
JF - Journal of the Optical Society of America B: Optical Physics
IS - 3
ER -