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Title: Macroscopic scaling of high-order harmonics generated by two-color optimized waveforms in a hollow waveguide

Journal Article · · Physical Review A
 [1];  [2];  [3]
  1. Nanjing Univ. (China)
  2. Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States)
  3. Kansas State Univ., Manhattan, KS (United States)

We present the macroscopic scaling of high harmonics generated by two-color laser pulses interacting with Ne gas in a hollow waveguide. We demonstrate that the divergence of harmonics is inversely proportional to the waveguide radius and harmonic yields are proportional to the square of the waveguide radius when the gas pressure and waveguide length are chosen to meet the phase-matching condition. We also show that harmonic yields are inversely proportional to the ionization level of the optimized two-color waveform with proper gas pressure if waveguide radius and length are fixed. These scaling relations would help experimentalists find phase-matching conditions to efficiently generate tabletop high-flux coherent soft x rays for applications.

Research Organization:
Kansas State Univ., Manhattan, KS (United States)
Sponsoring Organization:
USDOE Office of Science (SC)
Grant/Contract Number:
FG02-86ER13491
OSTI ID:
1535747
Alternate ID(s):
OSTI ID: 1372513
Journal Information:
Physical Review A, Vol. 96, Issue 1; ISSN 2469-9926
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 4 works
Citation information provided by
Web of Science

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Cited By (2)

Spectral splitting and phase matching of the macroscopic high-order harmonic generation in intense laser fields journal November 2019
Control of soft X-ray high harmonic spectrum by using two-color laser pulses journal January 2018