Graphene‐coupled terahertz semiconductor lasers for enhanced passive frequency comb operation
Optical frequency combs, consisting of well‐controlled equidistant frequency lines, have
been widely used in precision spectroscopy and metrology. Terahertz combs have been …
been widely used in precision spectroscopy and metrology. Terahertz combs have been …
Terahertz frequency combs exploiting an on-chip, solution-processed, graphene-quantum cascade laser coupled-cavity
The ability to engineer quantum-cascade-lasers (QCLs) with ultrabroad gain spectra, and
with a full compensation of the group velocity dispersion, at terahertz (THz) frequencies, is …
with a full compensation of the group velocity dispersion, at terahertz (THz) frequencies, is …
[HTML][HTML] Toward new frontiers for terahertz quantum cascade laser frequency combs
Broadband, quantum-engineered, quantum cascade lasers (QCLs) are the most powerful
chip-scale sources of optical frequency combs (FCs) across the mid-infrared and the …
chip-scale sources of optical frequency combs (FCs) across the mid-infrared and the …
High dynamic range, heterogeneous, terahertz quantum cascade lasers featuring thermally tunable frequency comb operation over a broad current range
We report on the engineering of broadband quantum cascade lasers (QCLs) emitting at
Terahertz (THz) frequencies, which exploit a heterogeneous active region scheme and have …
Terahertz (THz) frequencies, which exploit a heterogeneous active region scheme and have …
[HTML][HTML] Room temperature terahertz semiconductor frequency comb
A terahertz (THz) frequency comb capable of high-resolution measurement will significantly
advance THz technology application in spectroscopy, metrology and sensing. The recently …
advance THz technology application in spectroscopy, metrology and sensing. The recently …
[HTML][HTML] Comb-locked frequency-swept synthesizer for high precision broadband spectroscopy
Frequency combs have made optical metrology accessible to hundreds of laboratories
worldwide and they have set new benchmarks in multi-species trace gas sensing for …
worldwide and they have set new benchmarks in multi-species trace gas sensing for …
Frequency-comb-assisted terahertz quantum cascade laser spectroscopy
We report a metrological-grade THz spectroscopy based on the combination of a THz
frequency-comb synthesizer (FCS) and a THz quantum cascade laser (QCL). The QCL …
frequency-comb synthesizer (FCS) and a THz quantum cascade laser (QCL). The QCL …
Terahertz spectroscopy of gas mixtures with dual quantum cascade laser frequency combs
Terahertz laser frequency combs based on quantum cascade lasers provide coherent,
broadband, electrically pumped, THz radiation sources for use in future spectroscopic …
broadband, electrically pumped, THz radiation sources for use in future spectroscopic …
[HTML][HTML] Frequency combs in quantum cascade lasers: An overview of modeling and experiments
Over the past decade, the demonstration of frequency combs has been reported in a wide
range of quantum cascade lasers. These combs have huge potential in applications …
range of quantum cascade lasers. These combs have huge potential in applications …
Achieving comb formation over the entire lasing range of quantum cascade lasers
Frequency combs based on quantum cascade lasers (QCLs) are finding promising
applications in high-speed broadband spectroscopy in the terahertz regime, where many …
applications in high-speed broadband spectroscopy in the terahertz regime, where many …