In-line production of a bi-circular field for generation of helically polarized high-order harmonics

Journal Article · Mon May 23 00:00:00 EDT 2016 · Applied Physics Letters

DOI:https://doi.org/10.1063/1.4952436· OSTI ID:22590686

Kfir, Ofer; Bordo, Eliyahu; Ilan Haham, Gil; Lahav, Oren; Cohen, Oren ^[1]; Fleischer, Avner ^[1]

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1. Solid State Institute and Physics Department, Technion, Haifa 32000 (Israel)

The recent demonstration of bright circularly polarized high-order harmonics of a bi-circular pump field gave rise to new opportunities in ultrafast chiral science. In previous works, the required nontrivial bi-circular pump field was produced using a relatively complicated and sensitive Mach-Zehnder-like interferometer. We propose a compact and stable in-line apparatus for converting a quasi-monochromatic linearly polarized ultrashort driving laser field into a bi-circular field and employ it for generation of helically polarized high-harmonics. Furthermore, utilizing the apparatus for a spectroscopic spin-mixing measurement, we identify the photon spins of the bi-circular weak component field that are annihilated during the high harmonics process.

• OSTI ID: 22590686
• Journal Information: Applied Physics Letters, Vol. 108, Issue 21; Other Information: (c) 2016 Author(s); Country of input: International Atomic Energy Agency (IAEA); ISSN 0003-6951
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
HARMONICS
INTERFEROMETERS
LASER RADIATION
LASERS
MONOCHROMATIC RADIATION
PHOTONS
SPIN