High-harmonic generation in ZnO driven by self-compressed mid-infrared pulses
- Univ. of Central Florida, Orlando, FL (United States). Dept. of Physics
- Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
- Univ. of Central Florida, Orlando, FL (United States). Dept. of Physics, the College of Optics and Photonics and the Center for Research and Education in Optics and Lasers (CREOL)
Progress in attosecond science has relied on advancements in few-cycle pulse generation technology and its application to high-order harmonic generation. Traditionally, self-phase modulation in bulk solids has been used for the compression of moderate-energy pulses, additionally exhibiting favorable dispersion properties for mid-infrared (mid-IR) pulses. For this study, we use the anomalous dispersion of Y3Al5O12 (YAG) to self-compress many-cycle pulses from a 50 kHz mid-IR OPA down to produce sub-three-cycle 10 μJ pulses and further use them to generate high-order harmonics in a ZnO crystal. In agreement with theoretical predictions, we observe a boost in the harmonic yield by a factor of two, and spectral broadening of above-gap harmonics, compared to longer driving pulses. The enhanced yield results from an increase in the intensity for the self-compressed pulses.
- Research Organization:
- Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC); US Air Force Office of Scientific Research (AFOSR); Oak Ridge Associated Univ., Oak Ridge, TN (United States)
- Grant/Contract Number:
- AC52-06NA25396; FA9550-16-1-0149
- OSTI ID:
- 1441349
- Alternate ID(s):
- OSTI ID: 1425252
- Report Number(s):
- LA-UR-18-20651; JOBPDE
- Journal Information:
- Journal of the Optical Society of America. Part B, Optical Physics, Vol. 35, Issue 4; ISSN 0740-3224
- Publisher:
- Optical Society of America (OSA)Copyright Statement
- Country of Publication:
- United States
- Language:
- English
Web of Science
Crystal symmetry and polarization of high-order harmonics in ZnO
|
journal | October 2019 |
Crystal Symmetry and Polarization of High-order Harmonics in ZnO
|
text | January 2018 |
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