Polarization Gating Of High Harmonic Generation In The Water Window

Abstract

We implement the polarization gating (PG) technique with a two-cycle, 1.7 μm driving field to generate an attosecond supercontinuum extending to the water window spectral region. The ellipticity dependence of the high harmonic yield over a photon energy range much broader than previous work is measured and compared with a semi-classical model. When PG is applied, the carrier-envelope phase (CEP) is swept to study its influence on the continuum generation. PG with one-cycle (5.7 fs) and two-cycle (11.3 fs) delay are tested, and both give continuous spectra spanning from 50 to 450 eV under certain CEP values, strongly indicating the generation of isolated attosecond pulses in the water window region.

Publication Date

6-6-2016

Publication Title

Applied Physics Letters

Volume

108

Issue

23

Document Type

Article

Personal Identifier

scopus

DOI Link

https://doi.org/10.1063/1.4953402

Socpus ID

84974653278 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/84974653278

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