Quantum Institute: Visitor Schedule

The Quantum Lunch is regularly held on Thursdays in the Theoretical Division Conference Room, TA-3, Building 123, Room 121.

The organizing committee includes Malcolm Boshier (P-21), Adolfo del Campo (T-4 & CNLS), Michael Di Rosa (C-PCS), Armin Rahmanisisan (T-4 & CNLS), Changhyun Ryu (P-21) , Nikolai Sinitsyn (T-4), Rolando Somma (T-4), Christopher Ticknor (T-1), and Wojciech Zurek (T-4).

For more information, or to nominate a speaker, contact Adolfo del Campo.

To add your name to the Quantum Lunch email list, contact Ellie Vigil.

Thursday January 16, 2014
12:30 PM - 2:00 PM

Speaker: Dylan Yost (MPQ, Garching)

Technical Host: Malcolm Boshier

TOPIC: Frequency combs for short-wavelength, high-resolution spectroscopy

Abstract
Frequency combs have revolutionized optical spectroscopy by providing a robust means of controlling and measuring optical frequencies. In addition, a frequency comb is, in essence, a train of phase-controlled ultrafast pulses and, as such, is well suited for nonlinear conversion to spectral regions where laser gain media are not readily available. In this talk, I will discuss ongoing experiments being conducted at both The Max Planck Institute of Quantum Optics in Garching, Germany and at JILA in Boulder, Colorado which utilize both the high coherence and high peak intensity of frequency combs to conduct precision laser spectroscopy at very short wavelengths. I will first present our efforts to measure the hydrogen 1S-3S transition with a frequency comb centered at 205 nm, which could shed light on the ongoing proton-size puzzle and provide a stringent test of QED. I will then discuss work on the generation of extreme-ultraviolet frequency combs through the use of intracavity high-harmonic generation. This work has allowed for high-resolution laser spectroscopy of Ar at 82 nm and demonstrated that laser spectroscopy of hydrogen-like ions is within grasp.