Related Experiment Video
Updated: Jan 29, 2026

Quantum State Engineering of Light with Continuous-wave Optical Parametric Oscillators
Published on: May 30, 2014
Multimicrojoule GaSe-based midinfrared optical parametric amplifier with an ultrabroad idler spectrum covering
Abstract:
We report a multimicrojoule, ultrabroadband midinfrared optical parametric amplifier based on a GaSe nonlinear crystal pumped at ∼2 μm. The generated idler pulse has a flat spectrum spanning from 4.5 to 13.3 μm at -3 dB and 4.2 to 16 μm in the full spectral range, with a central wavelength of 8.8 μm. The proposed scheme supports a subcycle Fourier-transform-limited pulse width. A (2+1)-dimensional numerical simulation is employed to reproduce the obtained idler spectrum. To our best knowledge, this is the broadest -3 dB spectrum ever obtained by optical parametric amplifiers in this spectral region. The idler pulse energy is ∼3.4 μJ with a conversion efficiency of ∼2% from the ∼2 μm pump to the idler pulse.
Related Concept Videos
Noble Gases
The elements in group 18 are noble gases (helium, neon, argon, krypton, xenon, and radon). They earned the name “noble” because they were assumed to be nonreactive since they have filled valence shells. In 1962, Dr. Neil Bartlett at the University of British Columbia proved this assumption to be false.
Molecular Comparison of Gases, Liquids, and Solids
The Electromagnetic Spectrum
Operational Amplifiers
MOSFET Amplifiers
BJT Amplifiers
In BJT amplifier configurations, particularly in common-emitter setups, the transistor's role...

