High volume confinement in two-photon total-internal-reflection fluorescence correlation spectroscopy

Ivanov, D.; Shcheslavskiy, V.; Märki, I.; Leutenegger, M.; Lasser, T.
February 2009
Applied Physics Letters;2/23/2009, Vol. 94 Issue 8, p083902
Academic Journal
We report results on two-photon total-internal-reflection fluorescence correlation spectroscopy with radially polarized light. The combination of liquid crystal spatial light modulator, providing radial polarization with ultrafast laser (picosecond Nd:GdVO4 laser), allowed us to take the advantage of nonlinear optical contrast mechanisms to suppress the side-lobe energy specific for radial polarization and reduce the effective excited volume twice compared to one-photon evanescent wave excitation in fluorescence correlation spectroscopy.


Related Articles

  • One-dimensional photonic crystals with a planar oriented nematic layer: Temperature and angular dependence of the spectra of defect modes. Arkhipkin, V. G.; Gunyakov, V. A.; Myslivets, S. A.; Gerasimov, V. P.; Zyryanov, V. Ya.; Vetrov, S. Ya.; Shabanov, V. F. // Journal of Experimental & Theoretical Physics;Feb2008, Vol. 106 Issue 2, p388 

    Transmission spectra of a one-dimensional photonic crystal (PC) formed by two multilayer dielectric mirrors and a planar oriented layer of 5CB nematic liquid crystal (LC) that is sandwiched between these mirrors and serves as a structure defect are investigated experimentally. Specific features...

  • Spectrum-tunable liquid-crystal polarization isolator for diode lasers. Chernyshov, A. K.; Kotova, S. P. // Instruments & Experimental Techniques;Jan/Feb2006, Vol. 49 Issue 1, p92 

    The characteristics of a polarization optical isolator based on a liquid crystal cell as the spectrum-tunable quarter-wavelength plate are described. The investigated samples ensured an optical-isolation level of −30 dB for electronic tuning to an operating wavelength in the range...

  • A system of Kerr effect spectroscopy for light absorbing liquids. Horii, Kazuyoshi; Sakai, Keiji // Review of Scientific Instruments;Oct2004 Part I & II, Vol. 75 Issue 10, p3122 

    We developed experimental system of the optical Kerr effect spectroscopy for the light absorbing liquids. To avoid the problems due to the light absorption, such as the thermal lens effect, our new system used a gated rectangular light pulse with the alternative polarization modulation as the...

  • Reconstruction of the distribution function of relaxation times for 7CB and 7OCB liquid crystals from dielectric spectra. Belyaev, B.; Drokin, N.; Shabanov, V. // Physics of the Solid State;May2006, Vol. 48 Issue 5, p973 

    A technique for reconstructing the distribution function of relaxation times from the dielectric spectra measured over a wide range of frequencies is proposed and tested using 7CB and 7OCB liquid crystals as examples. The objective function, which is the sum of the squares of the differences...

  • Polarized Fluorescence of Jet-Cooled Indole and Carbazole and Their Complexes with Water. Borisevich, N.A.; Dziarzhytski, S.L.; Poveda&icaron;lo, V.A.; Yakovlev, D.L. // Optics & Spectroscopy;Jun2004, Vol. 96 Issue 6, p819 

    The spectra of the fluorescence excitation within the rotational contours of the bands of the pure electronic long-wavelength S0–S1 transitions of jet-cooled indole and carbazole molecules and their complexes with water are measured. For the carbazole–water complex, a contour with...

  • Angular tuning of defect modes spectrum in the one-dimensional photonic crystal with liquid-crystal layer. Arkhipkin, V. G.; Gunyakov, V. A.; Myslivets, S. A.; Zyryanov, V. Ya.; Shabanov, V. F. // European Physical Journal E -- Soft Matter;Nov2007, Vol. 24 Issue 3, p297 

    A one-dimensional ZrO2/SiO2 photonic crystal with a 4- n -pentyl-4' -cyanobiphenyl (5CB) nematic defect layer was used to investigate the transmission spectra of light polarized parallel and perpendicular to the liquid-crystal director at different angles of incidence. The spectra of the...

  • Depolarized light scattering spectra of the isotropic phase of nematic liquid crystals. Sabirov, L. M.; Semenov, D. I. // Optics & Spectroscopy;Jun2006, Vol. 100 Issue 6, p877 

    The depolarized light scattering spectra of the isotropic phase of N-( p-methoxybenzylidene)- p-butylaniline and p-azoxy-anisole nematic liquid crystals were experimentally investigated. The limits of applicability of the mean field approximation of the Landau-de Gennes theory to the description...

  • Optical properties of a stack of right- and left-handed layers of a cholesteric liquid crystal. Gevorgyan, A. // Optics & Spectroscopy;Aug2012, Vol. 113 Issue 2, p141 

    We have studied the optical properties of a stack that consists of right- and left-handed layers of a cholesteric liquid crystal (CLC). The problem has been solved using the modified Ambartsumyan layer-summation method. We have examined particular features of the reflection spectra of this...

  • Effect of Light on Nematic Liquid Crystal. Gharde, Rita; Thakare, Sangeeta // AIP Conference Proceedings;10/20/2011, Vol. 1391 Issue 1, p86 

    Liquid Crystal is a phase formed between a crystal and a liquid with a degree of order intermediate between the molecular disorder of liquid and the regular structure of crystal..The optical properties of Liquid Crystals are one of the most interesting and certainly the most beautiful features...


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics