The Experts below are selected from a list of 240 Experts worldwide ranked by ideXlab platform

S. Sainov - One of the best experts on this subject based on the ideXlab platform.

  • Interferometer based on total Internal Reflection
    Applied optics, 1995
    Co-Authors: S. Sainov, Ventseslav Sainov, Georgi Stoilov
    Abstract:

    An interferometer is investigated in which the interacting beams undergo total Internal Reflection from a boundary surface with a variable relative refractive index. The high sensitivity of the change in the interference pattern with respect to small changes in the refractive index in the vicinity of the critical angle is theoretically proved and experimentally confirmed.

  • Optical sensor based on total Internal Reflection diffraction grating
    Sensors and Actuators: A. Physical, 1994
    Co-Authors: S. Sainov
    Abstract:

    The possibility of using a metal diffraction grating, working in total Internal Reflection, as an optical sensor is shown. Using the elementary theory of such gratings, the inverse problem is solved in Fraunhofer's approximation and the refractive-index change as a function of the diffraction-efficiency change is determined for small changes of the relative refractive index. The sensitivity of the total Internal Reflection diffraction grating sensor is much higher for the first diffraction order, provided that the two diffracted beams satisfy the condition for total Internal Reflection at the prism-investigated medium interface. It is shown that in gratings with large periods and critical angles of the order of 65° (quartz-water interface), a change in the refractive index of 5 × 10-5can be detected if the diffraction efficiency is measured with an accuracy of ±1%. Experimentally, a refractive-index change of 3 × 10-4has been measured and it is shown that in the vicinity of the critical angle, there is a satisfactory agreement between the experimental results and the elementary theory for s-polarization of the incident wave. © 1994.

John C. Schotland - One of the best experts on this subject based on the ideXlab platform.

Guilhem Gallot - One of the best experts on this subject based on the ideXlab platform.

  • attenuated Internal Reflection terahertz imaging
    Optics Letters, 2013
    Co-Authors: Antoine Wojdyla, Guilhem Gallot
    Abstract:

    We present a terahertz (THz) imaging technique based on attenuated Internal Reflection, which is ideally suited for the analysis of liquid and biological samples. Inserted in a THz time-domain system, and using a high-resistivity low loss silicon prism to couple the THz wave into the sample, the detection scheme is based on the relative differential spectral phase of two orthogonal polarizations. Biological sample imaging as well as subwavelength (λ/16) longitudinal resolution are demonstrated.

  • Attenuated Internal Reflection terahertz imaging
    Optics Letters, 2013
    Co-Authors: Antoine Wojdyla, Guilhem Gallot
    Abstract:

    We present a terahertz (THz) imaging technique based on attenuated Internal Reflection, which is ideally suited for the analysis of liquid and biological samples. Inserted in a THz time-domain system, and using a high-resistivity low loss silicon prism to couple the THz wave into the sample, the detection scheme is based on the relative differential spectral phase of two orthogonal polarizations. Biological sample imaging as well as subwavelength (?/16) longitudinal resolution are demonstrated. Cop. 2013 Optical Society of America.

  • Total Internal Reflection Terahertz imaging
    2011
    Co-Authors: Antoine Wojdyla, Guilhem Gallot
    Abstract:

    We present a new Terahertz imaging scheme based on total Internal Reflection that allows the study of aqueous samples while improving the longitudinal resolution. We were able to image a frog neuron using the spectral phase of the THz pulses using this technique. © 2011 IEEE.

  • Total Internal Reflection Terahertz imaging
    2011 International Conference on Infrared Millimeter and Terahertz Waves, 2011
    Co-Authors: Antoine Wojdyla, Guilhem Gallot
    Abstract:

    We present a new Terahertz imaging scheme based on total Internal Reflection that allows the study of aqueous samples while improving the longitudinal resolution. We were able to image a frog neuron using the spectral phase of the THz pulses using this technique.

K.a. Mcgreer - One of the best experts on this subject based on the ideXlab platform.

Shiro Suetsugu - One of the best experts on this subject based on the ideXlab platform.

  • Spatiotemporal Analysis of Caveolae Dynamics Using Total Internal Reflection Fluorescence Microscopy.
    Methods in molecular biology (Clifton N.J.), 2020
    Co-Authors: Yosuke Senju, Shiro Suetsugu
    Abstract:

    Total Internal Reflection fluorescence microscopy enables to analyze the localizations and dynamics of cellular events that occur at or near the plasma membrane. Total Internal Reflection fluorescence microscopy exclusively illuminates molecules in the close vicinity of the glass surface, thereby reducing background fluorescence and enabling observation of the plasma membrane in the glass-attached cells with a high signal-to-noise ratio. Here, we describe the application of total Internal Reflection fluorescence microscopy to analyze the dynamics of caveolae, which play essential physiological functions, including membrane tension buffering, endocytosis, and signaling at the plasma membrane.