Generation of narrow-bandwidth, tunable, coherent xuv radiation using high-order harmonic generation

Journal Article · Tue Mar 15 00:00:00 EDT 2011 · Physical Review. A

DOI:https://doi.org/10.1103/PHYSREVA.83.033835· OSTI ID:21541392

Jinping, Yao; Haisu, Zhang; Bin, Zeng; Wei, Chu; Jielei, Ni ^[1]; Ya, Cheng; Han, Xu; Hui, Xiong; Zhizhan, Xu ^[1]; Chen, J ^[2]; Liu, X ^[3]

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1. State Key Laboratory of High Field Laser Physics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, P.O. Box 800-211, Shanghai 201800 (China)
2. Center for Applied Physics and Technology, Peking University, Beijing 100084 (China)
3. State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Wuhan Institute of Physics and Mathematics, Chinese Academy of Sciences, Wuhan 430071 (China)

We theoretically demonstrate the generation of wavelength-tunable, narrow-bandwidth extreme-ultraviolet (xuv) radiation by high-order harmonic generation (HHG) driven by an orthogonally polarized two-color laser field, which is composed of a 10-fs, 1500-nm laser pulse and a 40-fs, 2400-nm laser pulse. By performing classical analysis, we reveal that the rapid change of electron wave-packet dynamics at a subcycle time scale confines high-order harmonic emission to a small spectral region, leading to the generation of narrow-bandwidth xuv radiation. Furthermore, the central wavelength of the xuv radiation can be continuously tuned over a wide range by changing either the peak intensity of the driver laser or the amplitude ratio between the two laser fields at different wavelengths. It is also verified that the use of driver pulses at longer wavelengths leads to a better spectral confinement of the xuv radiation.

• OSTI ID: 21541392
• Journal Information: Physical Review. A, Vol. 83, Issue 3; Other Information: DOI: 10.1103/PhysRevA.83.033835; (c) 2011 American Institute of Physics; ISSN 1050-2947
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
AMPLITUDES
COLOR
CONFINEMENT
ELECTRONS
EXTREME ULTRAVIOLET RADIATION
HARMONIC GENERATION
LASER RADIATION
LEVEL WIDTHS
PULSES
WAVE PACKETS
WAVELENGTHS
ELECTROMAGNETIC RADIATION
ELEMENTARY PARTICLES
FERMIONS
FREQUENCY MIXING
LEPTONS
OPTICAL PROPERTIES
ORGANOLEPTIC PROPERTIES
PHYSICAL PROPERTIES
RADIATIONS
ULTRAVIOLET RADIATION