The Experts below are selected from a list of 39 Experts worldwide ranked by ideXlab platform

Thomas Graf - One of the best experts on this subject based on the ideXlab platform.

  • application of the extended jones matrix formalism for higher order transverse modes to laser resonators
    2010
    Co-Authors: Andreas Voss, Marwan Abdouahmed, Thomas Graf
    Abstract:

    The extension of the Jones matrix formalism to higher-order transverse modes using N x N matrices presented in a previous paper [8] is applied to laser resonators. The resonator discussed in detail has a TEM01* Hermite-Gaussian mode, an axially symmetric polarizer combined with an axially symmetric phase shifter as a rear Mirror and a Folding Mirror with conventional polarization dependent reflectivity and phase shift. The analysis reveals some useful regimes, where the output polarization is close to radial or azimuthal and the sensitivity to variations in the phase shift of the Folding Mirror is minimized.

Kumar Raj - One of the best experts on this subject based on the ideXlab platform.

  • Interference and diffraction effects in Folding Mirror schlieren diffraction interferometer
    2008
    Co-Authors: Kumar Raj
    Abstract:

    Experimental investigations on interference and diffraction phenomenon occurring in a Folding Mirror schlieren diffraction interferometer have been presented. It is shown that the well-known Lloyd Mirror interferometer can easily be converted into a Folding Mirror schlieren diffraction interferometer. Various intermediate stages occur as the basic two-beam interference pattern in Lloyd Mirror interferometer is transformed into a schlieren diffraction pattern. Study of these intermediate stages gives a good insight in understanding the transition behaviour between the fundamental phenomenon of interference and diffraction taking place as the Mirror-edge approaches the Airy disk

Andreas Voss - One of the best experts on this subject based on the ideXlab platform.

  • application of the extended jones matrix formalism for higher order transverse modes to laser resonators
    2010
    Co-Authors: Andreas Voss, Marwan Abdouahmed, Thomas Graf
    Abstract:

    The extension of the Jones matrix formalism to higher-order transverse modes using N x N matrices presented in a previous paper [8] is applied to laser resonators. The resonator discussed in detail has a TEM01* Hermite-Gaussian mode, an axially symmetric polarizer combined with an axially symmetric phase shifter as a rear Mirror and a Folding Mirror with conventional polarization dependent reflectivity and phase shift. The analysis reveals some useful regimes, where the output polarization is close to radial or azimuthal and the sensitivity to variations in the phase shift of the Folding Mirror is minimized.

Amitesh Aggarwal - One of the best experts on this subject based on the ideXlab platform.

  • Folding Mirror schlieren diffraction interferometer
    2006
    Co-Authors: Raj Kumar, D P Chhachhia, Amitesh Aggarwal
    Abstract:

    We demonstrate the use of a Mirror as a viewing diaphragm to generate a built-in diffracted reference beam in schlieren diffraction interferometry (SDI). The use of a Mirror edge as a diffracting element instead of a conventional knife edge considerably enhances the contrast of the schlieren pattern, and it is shown to be equal to that of a phase knife edge. This increase in contrast is due to the fact that the otherwise unutilized diffracted beam in SDI is recombined in the described Folding Mirror geometry.

Marwan Abdouahmed - One of the best experts on this subject based on the ideXlab platform.

  • application of the extended jones matrix formalism for higher order transverse modes to laser resonators
    2010
    Co-Authors: Andreas Voss, Marwan Abdouahmed, Thomas Graf
    Abstract:

    The extension of the Jones matrix formalism to higher-order transverse modes using N x N matrices presented in a previous paper [8] is applied to laser resonators. The resonator discussed in detail has a TEM01* Hermite-Gaussian mode, an axially symmetric polarizer combined with an axially symmetric phase shifter as a rear Mirror and a Folding Mirror with conventional polarization dependent reflectivity and phase shift. The analysis reveals some useful regimes, where the output polarization is close to radial or azimuthal and the sensitivity to variations in the phase shift of the Folding Mirror is minimized.