Zobrazeno 1 - 10
of 41
pro vyhledávání: '"R I, Personov"'
Publikováno v:
Optics and Spectroscopy. 92:859-865
The effect of an external electric field on narrow spectral holes in S1←S0 absorption bands of molecules of free-base phthalocyanine and its complex with Al in polyvinyl butyral films at 4.2 K was studied. It was found that the average values of th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::10250f87f76ba7b68fe8e99a8947bc20
https://doi.org/10.1134/1.1490022
https://doi.org/10.1134/1.1490022
Autor:
M. A. Kol'chenko, Stephan J. Zilker, Yu. G. Vainer, Andrei V. Naumov, Dietrich Haarer, R. I. Personov
Publikováno v:
The Journal of Chemical Physics. 116:8959-8965
We have performed optical photon echo measurements on amorphous toluene doped with zinc-octaethylporphine over a wide temperature interval (0.35–100 K). This broad temperature range, reaching from subkelvins up to the Debye temperature of toluene (
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4ebbc594443f1637b4f62a2e065341ee
https://doi.org/10.1063/1.1473196
https://doi.org/10.1063/1.1473196
Publikováno v:
Physical Review Letters. 84:1027-1030
We observed phosphorescence from a ladder-type poly-(para-phenylene) and an analogous oligomer containing five phenylene rings. The spectra are similar to the intrinsic fluorescence spectra and bear out a singlet-triplet splitting of 5000 cm(-1) (pol
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::00cf8d408ccf9a5149e5876125aff70c
https://doi.org/10.1103/physrevlett.84.1027
https://doi.org/10.1103/physrevlett.84.1027
Publikováno v:
Chemical Physics. 249:29-39
The delayed luminescence of a film of ladder-type π-conjugated polymer – the methyl-substituted poly( para -phenylene) (MeLPPP) – has been detected and investigated at 6, 77 and 295 K. The delayed emission consists of a delayed fluorescence (DF)
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::796d32dd72804e3ef8739af13f5d0e38
https://doi.org/10.1016/s0301-0104(99)00254-2
https://doi.org/10.1016/s0301-0104(99)00254-2
Publikováno v:
Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy. 55:2015-2020
The Stark effect on the hole-burning spectra of Zn- and Mg-phthalocyanine (Zn-, Mg-PhC) in polyvinylbutyral (PVB) films at 4.2 K have been measured using a tunable diode laser technique in the visible region. Simultaneously, with a linear Stark effec
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::af351ce7cfc36c5ba12926107f69e34d
https://doi.org/10.1016/s1386-1425(99)00073-6
https://doi.org/10.1016/s1386-1425(99)00073-6
Autor:
Shao-Ying Cheng, Chien-Chih Chiang, Kevin C. Weng, Ta-Chau Chang, R. I. Personov, Ji-Yen Cheng
Publikováno v:
Chemical Physics Letters. 302:347-353
We have applied the satellite hole spectroscopy to study the tautomeric structures of thionin dye in glycerol:water glass. Slightly different frequencies (∼15 cm −1 ) are observed for several satellite holes of thionin upon tuning the burning wav
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1691f91f7277071a6112c03163d147d1
https://doi.org/10.1016/s0009-2614(99)00047-0
https://doi.org/10.1016/s0009-2614(99)00047-0
Autor:
R. I. Personov, Lothar Kador, Stephan J. Zilker, Yuri G. Vainer, J. Friebel, M. A. Kol'chenko
Publikováno v:
The Journal of Chemical Physics. 109:6780-6790
A joint analysis of spectroscopic data obtained at liquid–helium temperatures by three line-narrowing techniques, photon echo (PE), persistent hole burning (HB), and single molecule spectroscopy (SMS), is presented. Two polymer systems, polyisobuty
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4016738ec36907413a1a89b443770538
https://doi.org/10.1063/1.477324
https://doi.org/10.1063/1.477324
Publikováno v:
Chemical Physics Letters. 289:553-558
We present the first comparative analysis of spectral data obtained at low temperatures with three different highly selective techniques: two-pulse photon echo (2PE), hole-burning (HB) and single-molecule spectroscopy (SMS) of a polyisobutylene glass
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6180d4ad94dbf79b51e3df0509933e78
https://doi.org/10.1016/s0009-2614(98)00466-7
https://doi.org/10.1016/s0009-2614(98)00466-7
Autor:
Stephan J. Zilker, Dietrich Haarer, Yuri G. Vainer, Andrei V. Deev, R. I. Personov, Michail A. Kol'chenkq
Publikováno v:
Molecular Crystals and Liquid Crystals Science and Technology. Section A. Molecular Crystals and Liquid Crystals. 314:143-148
We present a comprehensive investigation of fast line broadening processes in two amorphous polymers, polymethylmethacrylate and polyisobutylene. Using a combination of two-pulse and incoherent photon echo spectroscopy, we have studied the homogeneou
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9062a3df69108a6feaab6f0ea0da3c7e
https://doi.org/10.1080/10587259808042470
https://doi.org/10.1080/10587259808042470
Publikováno v:
Journal of Luminescence. :157-160
Spectroscopic techniques exhibit different sensitivities for line broadening processes in amorphous solids. Photon echo and hole-burning spectroscopy yield averages over the chromophore ensemble. At low temperatures, the results can usually be fitted
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9344cd6e18abcbf80b814074793f318a
https://doi.org/10.1016/s0022-2313(97)00199-3
https://doi.org/10.1016/s0022-2313(97)00199-3