Internal state cooling with a femtosecond optical frequency comb

✍ Scribed by S. Malinovskaya; V. Patel; T. Collins

• Book ID: 104577061
• Publisher: John Wiley and Sons
• Year: 2010
• Tongue: English
• Weight: 410 KB
• Volume: 110
• Category: Article
• ISSN: 0020-7608
• DOI: 10.1002/qua.22896

✦ Synopsis

Abstract

A single femtosecond optical frequency comb is implemented to induce two‐photon transitions between molecular vibrational levels to form ultracold molecules. The phase across an individual pulse in the pulse train is sinusoidally modulated with a carefully chosen modulation amplitude and frequency. Piecewise population transfer is fulfilled to the final state by each pulse in the applied pulse train providing a controlled population accumulation in the final, ultracold state. The dynamics of rovibrational cooling is discussed on an example of the KRb molecule. © 2010 Wiley Periodicals, Inc. Int J Quantum Chem, 2010