Work

Simplified setup for high-resolution spectroscopy that uses ultrashort pulses

Year: 2003

Type: article

Abstract: Using a broadband femtosecond laser and a simple optical setup, we demonstrate narrow-bandwidth-tunable excitation of vibrational modes in CCl4 and CHBr3 liquids. The resolution obtained is 80 times higher than the laser bandwidth. A pair of time-shifted, linearly chirped pulses is created by use of a high-order dispersion-compensated prism-interferometer setup. We use this pulse pair to selectively excite Raman-active transitions. Our setup represents a significant simplification with improved resolution, of previous approaches to the use of ultrashort pulses for chemically selective spectroscopy.

Source: Optics Letters

DOI: 10.1364/ol.28.000361

Authors: E. Gershgoren, R. A. Bartels, J. T. Fourkas, R. Tobey, M. M. Murnane, H. C. Kapteyn

Institutions: National Institute of Standards and Technology, Joint Institute for Laboratory Astrophysics, University of Colorado Boulder

Language: English

Topic: Laser-Matter Interactions and Applications

Subfield: Atomic and Molecular Physics, and Optics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: green

Funders: National Science Foundation, Boston College

OpenAlex ID: W2049043943

FWCI: 4.213

Cites: 16

Cited by: 94

Related to: 10