High-performance near- and mid-infrared crystalline coatings (Prof. M. Aspelmeyer)

  • Date: May 3, 2018
  • Time: 04:30 PM - 05:30 PM (Local Time Germany)
  • Speaker: Prof. Dr. Markus Aspelmeyer
  • Quantum Optics, Quantum Nanophysics und Quantum Information, Faculty of Physics, University of Vienna
  • Room: New Lecture Hall, Room B 0.32
  • Host: MPQ, Attosecond Physics Division
Substrate-transferred crystalline coatings exploit the unique properties of single-crystal semiconductor coatings for high-end laser optics applications.

In comparison with dielectric IBS coatings, crystalline coatings exhibit order of magnitude improvements in mechanical loss (i.e. thermal noise), thermal conductivity, and in absorption losses in the mid-infrared spectral region. I will discuss the current status and provide several application examples including ultra- stable lasers, optical precision measurements, high-power SESAMs, and high-finesse MIR optical cavities in the fingerprint region for optical trace gas sensing.

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