Gregory P. Lousberg

Publications (2)3.4 Total impact

• Conference Proceeding: Spatial coherence in VCSEL-based photonic crystal homostructures and heterostructures

  Lars D A Lundeberg, Gregory P. Lousberg, Dmitri L. Boiko, Eli Kapon
  [show abstract] [hide abstract]
  ABSTRACT: Mapping of the degree of spatial coherence among the elements of VCSEL-based photonic crystal homo- and hetero-structures reveals details of the phase locking not available from conventional far-field diffraction patterns.
  Lasers and Electro-Optics and 2006 Quantum Electronics and Laser Science Conference. CLEO/QELS 2006. Conference on; 06/2006
• Source

  Available from: D. L. Boiko

  Article: Space-domain lock-in amplifier based on a liquid-crystal spatial light modulator.

  Gregory P Lousberg, Lars D A Lundeberg, Dmitri L Boiko, Eli Kapon
  [show abstract] [hide abstract]
  ABSTRACT: We present a two-dimensional (2D) spatial lock-in amplifier that provides a contrast ratio of more than 10,000:1 for transmitted and blocked intensity patterns using a conventional liquid-crystal spatial light modulator. The device is based on spatial-domain modulation-demodulation of intensity patterns under coherent imaging conditions. The operation of the 2D lock-in amplifier is illustrated by implementing Young's double-slit arrangement for measurements of the mutual coherence between individual emitters of a 2D phase-coupled array of vertical cavity surface emitting lasers.
  Optics Letters 05/2006; 31(7):990-2. · 3.40 Impact Factor