Zobrazeno 1 - 10
of 11
pro vyhledávání: '"Aleks Rebane"'
Publikováno v:
SPIE Proceedings.
Reference standards with well-defined femtosecond two-photon absorption (2PA) properties facilitate accurate measurement of nonlinear-optical spectra by bypassing tedious characterization of the photon flux. The 2PA standards are increasingly used fo
Publikováno v:
IEEE Photonics Journal, Vol 4, Iss 5, Pp 1996-2001 (2012)
Here, we present a new all-optical method of interrogation of the internal electric field vector inside proteins. The method is based on experimental evaluation of the permanent dipole moment change upon excitation and the pure electronic transition
Publikováno v:
Bulletin of the Russian Academy of Sciences: Physics. 74:891-900
We analyze the material requirements for recording, storage, and processing of optically encoded information using coherent optical transients in resonant solids. We introduce new figures of merit (FOM’s) that explicitly account for the ratio betwe
Publikováno v:
SPIE Proceedings.
We introduce new figures of merit (FOM's) for resonant optical materials used in recording, storage, and processing of optically encoded information using coherent optical transients. The goal is to account for maximum coherence storage time as well
Autor:
Christoph Nacke, Nikolay S. Makarov, Aleks Rebane, Mikhail Drobizhev, Juri Pahapill, Erich Beuerman
Publikováno v:
Organic Photonic Materials and Devices XII.
We present a new approach to modeling of homogeneous line shape in two-photon absorption (2PA) spectra of chromophores with large permanent dipole moment difference between the ground- and excited electronic states using numerical solution of stochas
Publikováno v:
BMC Biotechnology
BMC Biotechnology, Vol 10, Iss 1, p 6 (2010)
BMC Biotechnology, Vol 10, Iss 1, p 6 (2010)
Background Two-photon dual-color imaging of tissues and cells labeled with fluorescent proteins (FPs) is challenging because most two-photon microscopes only provide one laser excitation wavelength at a time. At present, methods for two-photon dual-c
Autor:
Aleks Rebane
Publikováno v:
SPIE Newsroom.
Autor:
Beata Koszarna, Aleks Rebane, Daniel T. Gryko, Michal Galezowski, Nikolay S. Makarov, Mikhail Drobizhev
Publikováno v:
SPIE Proceedings.
We report simultaneous two-photon absorption (2PA) spectra in a series of substituted corroles and related porphyrins in 800-1400 nm laser wavelength range. Compared to the porphyrins, the 2PA spectrum of corroles contains a distinct and relatively h
Publikováno v:
SPIE Proceedings.
We study narrowing of nonlinear two photon absorption line shape in system with non-zero permanent dipole moment difference between the ground- and excited state. The temperature-induced broadening of one photon absorption (1PA) and two photon absorp
Autor:
Mikhail Drobizhev, Fanqing Meng, Nikolay S. Makarov, Charles W. Spangler, Aijun Gong, Aleks Rebane
Publikováno v:
SPIE Proceedings.
We study two-photon absorption (2PA) spectra and absolute 2PA cross sections, as well as fluorescence emission- and excitation spectra along with time resolved fluorescence in a series of new dendrimers, where a single porphyrin/phthalocyanine core i