Observation of single high-harmonic enhancement by quasi-resonance with a tellurium ion in a laser-ablation plume at 29.44 nm

Journal Article · Mon Oct 15 00:00:00 EDT 2007 · Journal of the Optical Society of America. Part B, Optical Physics

DOI:https://doi.org/10.1364/JOSAB.24.002686· OSTI ID:21013663

Suzuki, Masayuki; Baba, Motoyoshi; Kuroda, Hiroto ^[1]; Ganeev, Rashid A ^[2]; Ozaki, Tsuneyuki ^[3]

---

1. The Institute for Solid State Physics, The University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa, Chiba 277-8581 (Japan)
2. Scientific Association Akadempribor, Academy of Sciences of Uzbekistan, Akademgorodok, Tashkent 100125 (Uzbekistan)
3. Institut national de la recherche scientifique, 1650 boul. Lionel-Boulet Varennes (Quebec) J3X 1S2 (Canada)

We demonstrate the intensity enhancement of a single high-order harmonic (27th harmonic) at 29.44 nm by using lowly charged tellurium ions in a laser-ablation plume. The enhancement of a single harmonic is due to multiphoton resonance with a Te II transition having strong oscillator strength. By tuning the wavelength of the pump laser, we found that the enhancement factor depends on the difference between the wavelength of the enhanced harmonic and that of the strong radiative transition. For tellurium, we show that intense single harmonic generation can be generated when the wavelength of the 27th harmonic is closer to the wavelength of the strong transition.

• OSTI ID: 21013663
• Journal Information: Journal of the Optical Society of America. Part B, Optical Physics, Vol. 24, Issue 10; Other Information: DOI: 10.1364/JOSAB.24.002686; (c) 2007 Optical Society of America; Country of input: International Atomic Energy Agency (IAEA); ISSN 0740-3224
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ABLATION
HARMONIC GENERATION
LASERS
MULTI-PHOTON PROCESSES
NONLINEAR OPTICS
OSCILLATOR STRENGTHS
PLUMES
RESONANCE
TELLURIUM IONS
WAVELENGTHS