Skip to main content

3 Result(s)

within C T Nguyen Remove this filter Optics, Lasers, Photonics, Optical Devices Remove this filter

and

  1. No Access

    Article

    UV beam-assisted efficient formation of surface relief grating on azobenzene polymers

    An efficient method is demonstrated to improve the formation of a surface relief grating (SRG) with a high amplitude. The SRG is realized by a two-beam interference technique (λ=532 nm) in an azobenzene side-chai...

    X. Wu, T. T. N. Nguyen, I. Ledoux-Rak, C. T. Nguyen, N. D. Lai in Applied Physics B (2012)

  2. No Access

    Chapter and Conference Paper

    Phase Angle Model for Pulse Tube with Secondary Orifice Using Lumped-Element Electrical Network Analysis

    The pressure-flow phase angle is a key design parameter for optimizing pulse tube cryocooler performance. A high efficiency cryocooler requires an optimal phase angle that minimizes viscous dissipation losses ...

    C. T. Nguyen, M. S. Haberbusch, A. J. Yeckley in Cryocoolers 13 (2005)

  3. No Access

    Article

    500-Hz two-photon Ramsey fringes with a SF6 beam: towards a new frequency standard in the 30-THz spectral region

    A two-photon Ramsey-fringe experiment with a supersonic beam of SF6 has been performed with an interzone distance of up to 50 cm. Using a He-seeded beam with 50% of SF6, the two-photon transition P(4)E0 in the 2ν

    A. Shelkovnikov, Ch. Grain, C.T. Nguyen, R.J. Butcher, A. Amy-Klein… in Applied Physics B (2001)