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Benjamin S. Williams
Researcher at University of California, Los Angeles
Publications - 171
Citations - 8204
Benjamin S. Williams is an academic researcher from University of California, Los Angeles. The author has contributed to research in topics: Terahertz radiation & Laser. The author has an hindex of 38, co-authored 146 publications receiving 7677 citations. Previous affiliations of Benjamin S. Williams include Delft University of Technology & Massachusetts Institute of Technology.
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Terahertz quantum-cascade lasers
TL;DR: In this paper, the state-of-the-art and future prospects for terahertz quantum-cascade laser systems are reviewed, including efforts to increase their operating temperatures, deliver higher output powers and emit longer wavelengths.
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Operation of terahertz quantum-cascade lasers at 164 K in pulsed mode and at 117 K in continuous-wave mode.
TL;DR: The demonstration of a terahertz quantum-cascade laser that operates up to 164 K in pulsed mode and 117 K in continuous-wave mode at approximately 3.0 THz is reported.
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3.4-THz quantum cascade laser based on longitudinal-optical-phonon scattering for depopulation
TL;DR: In this article, a quantum cascade laser at λ=87.2 µm was developed for electron depopulation at 3.44 THz and 14.2 meV photon energy.
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Quantum cascade lasers: 20 years of challenges.
TL;DR: The most recent technological and application advances of quantum cascade lasers are reviewed, underlining the present milestones and future directions from the Mid-infrared to the Terahertz spectral range.
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Terahertz quantum-cascade laser at λ≈100 μm using metal waveguide for mode confinement
TL;DR: In this article, a double-sided metal waveguide was used for lasing at ∼3.0 ε-THz (λ≈98-102 µm) in a quantum-cascade structure.