6 papers
Frequency-modulated combs as phase solitons
David Burghoff
Frequency combs are light sources with coherent evenly-spaced lines. It has been observed that in certain laser systems, combs can form whose output is frequency-modulated (FM) in…
High-resolution spectroscopy of arbitrary light sources using frequency combs
David Burghoff
Multiheterodyne techniques using frequency combs -- light sources whose lines are perfectly evenly-spaced -- have revolutionized optical science. By beating an unknown signal with…
Compact and high-precision wavemeters using the Talbot effect and signal processing
Ningren Han, Gavin N. West, Amir H. Atabaki +2
Precise knowledge of a laser's wavelength is crucial for applications from spectroscopy to telecommunications. Here we present a wavemeter which operates on the Talbot effect. Tone…
Terahertz hyperspectral imaging with dual chip-scale combs
Lukasz A. Sterczewski, Jonas Westberg, Yang Yang +4
Hyperspectral imaging is a technique that allows for the creation of multi-color images. At terahertz wavelengths, it has emerged as a prominent tool for a number of applications,…
Computational multiheterodyne spectroscopy
David Burghoff, Yang Yang, Qing Hu
Dual comb spectroscopy allows for high-resolution spectra to be measured over broad bandwidths, but an essential requirement for coherent integration is the availability of a phase…
Terahertz multi-heterodyne spectroscopy using laser frequency combs
Yang Yang, David Burghoff, Darren J. Hayton +3
Frequency combs based on terahertz quantum cascade lasers feature broadband coverage and high output powers in a compact package, making them an attractive option for broadband spe…