Flat-field XUV spectrograph for attosecond science
Abstract
Many experiments in attosecond science are limited by the available extreme ultraviolet (XUV) photon flux and pulse repetition rate. While cavity-enhanced high-harmonic generation (HHG) offers the highest HHG repetition rates and average powers, it has suffered the drawback of operating with somewhat longer pulse durations than single-pass HHG systems driven by Ti:Sapphire lasers. Funded by the AFOSR, we are developing a high repetition rate (87 MHz) source of isolated attosecond pulses (IAPs) based on cavity-enhanced HHG. In this DURIP proposal, funds are requested for the purchase of a flat-field XUV spectrograph and related equipment for measuring the spectra of XUV light produced. The proposed instrument will allow us to characterize XUV spectra generated by our source quickly and easily, allowing us to optimize the production of IAPs. It can also be used for attosecond transient absorption experiments, which currently have low signal to noise. With a fast gating detector, single-shot spectra can be recorded, allowing characterization of the generated light on a shot-by-shot basis. HHG experiments will record XUV continua produced from a cavity-enhanced system, aiming to produce the broadest continuum spectrum with the highest duty cycle. Generated IAPs can then be immediately applied to surface experiments in our laboratory.
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- Apr 09, 2018
- Source ID
- FA95501710420
Entities
People
- Thomas Allison
Organizations
- Air Force Office of Scientific Research
- Research Foundation for the State University of New York
- United States Air Force