Ultrafast Frequency Comb Spectroscopy
We are an interdisciplinary group in the Department of Chemistry at the University of Georgia, combining the tools of physics and optical engineering to study pertinent problems in physical chemistry and quantum mechanics. We are looking for motivated graduate students in Physics, Engineering, or Chemistry to join the team! We have projects that focus on fundamental sciences as well as more applied projects that have commercialization potential.
We exploit the properties of frequency comb lasers for improving techniques in ultrafast spectroscopy. We are building up a new ultrafast and ultrasensitive transient absorption spectrometer. This will involve building Yb:fiber laser frequency combs and coupling them to optical resonator cavities to enhance both the power and sensitivity of the technique. We are also taking some recent technical developments and working on new analytical instrumentation.
Developing Frequency Comb - Based Technologies
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A frequency comb is an ultrafast laser with stabilized carrier-envelope phase. The laser spectrum is bread but composed of narrow lines, giving it a “comb-like” structure. NIST has a great introductory tutorial:
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We use Ytterbium-doped optical fiber and create stable, ultrafast frequency combs.
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Stable lasers, frequency combs, ultrafast lasers, and ultrafast spectroscopy are all essential tools and building blocks for the emerging quantum computing and quantum technology sector. Our students are highly sought-after in this emerging field.
NEWS:
A HUGE congratulations to Uyen Ta for receiving an NSF GRF!
Jie Zhan will be attending the 2024 Siegman International School on Lasers this summer. She also received the Zuegel Family Scholarship to attend! Congratulations!
Nick Cooper successfully defended his PhD thesis. Congratulations, Nick! The first Reber Lab PhD!
Prof. Reber received a 2024 NSF CAREER award to study nonadiabatic molecular dynamics with cavity-enhanced transient absorption spectroscopy!