Tabletop generation of coherent soft X-ray (SXR) light via high harmonic generation (HHG) would enable a vast array of experiments, including spectroscopic, imaging and dynamical measurements of ultrafast and ultrasmall systems. Although SXR HHG has been demonstrated, a bright, stable and reliable source for applications has been elusive. The primary barrier to a useful SXR HHG source has been in the driving laser, which demands mJ pulse energies, femtosecond pulse durations, mid-IR wavelengths, kHz repetitions rates and high stability. To meet these demanding specifications, we are developing a 3-μm OPCPA system. The system is based on an all-fiber front end which generates a 1.5 micron signal seed using an Er-doped fiber amplifier and a 1-micron pump seed from a Yb-doped fiber amplifier. The pump is amplified in a cryo-cooled Yb regenerative amplifier, and amplification occurs in multiple MgO:PPLN OPA stages. The system is under construction and currently able to generate 3-μm pulses with energies in the hundreds of microjoules.
Abstract Type
poster
University
University of Colorado Boulder
Abstract Title
Development of a Mid-IR Laser for Soft X-ray High Harmonic Generation
Abstract Author(s)
Drew Morrill, Daniel Carlson, Henry Kapteyn, Margaret Murnane, Michael Hemmer
Username
morrill2018
First Name
Drew
Last Name
Morrill
Program
ssgf
Area of Study
DOE NNSA SSGF
Poster Group
Group 2
Poster Number
1
Reviewer Approved
No