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Temperature tunable random laser using superconducting materials

Ghasempour Ardakani, A ; Sharif University of Technology | 2012

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  1. Type of Document: Article
  2. DOI: 10.1016/j.optcom.2011.12.052
  3. Publisher: 2012
  4. Abstract:
  5. We propose that spectral intensity of superconductor based random lasers can be made tunable by changing temperature. The two fluid model and wavelength dependent dispersion formula have been employed to describe the optical response of the superconducting materials. Random laser characteristics have been calculated using the one dimensional FDTD method. Our simulation results reveal that the emission spectrum can be manipulated through the ambient temperature of the system. It is observed that transition from metal phase to pure superconducting phase leads to the enhancement of the laser emission. Furthermore, spatial distribution of the fields in one dimensional disordered media is very sensitive to the system temperature
  6. Keywords:
  7. Random laser ; Changing temperature ; Disordered media ; Dispersion formulas ; Emission spectrums ; FDTD method ; Laser emission ; Metal phase ; Optical response ; Random lasers ; Spectral intensity ; Superconducting phase ; Superconductor layer ; System temperature ; Tunable random laser ; Two fluid model ; Emission spectroscopy ; Finite difference time domain method ; Laser beams ; Superconductivity ; Superconducting materials
  8. Source: Optics Communications ; Volume 285, Issue 7 , 2012 , Pages 1900-1904 ; 00304018 (ISSN)
  9. URL: http://www.sciencedirect.com/science/article/pii/S0030401811014350