Mainz 2017 – scientific programme

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Q: Fachverband Quantenoptik und Photonik

Q 40: Poster: Quantum Optics and Photonics II

Q 40.57: Poster

Wednesday, March 8, 2017, 17:00–19:00, P OG2

Tabletop 20 kHz laser source for circularly polarized vacuum ultraviolet radiation — •Tobias Reiker, Daniel Nürenberg, and Helmut Zacharias — Westfälische Wilhelms-Universität, Münster, Deutschland

We present a high repetition rate table top laser source at a photon energy of 10.5 eV with full control over the polarization. The radiation is generated from a 20 kHz Nd:YVO4 laser with a wavelength of 355 nm by frequency tripling in Xenon to a wavelength of 118nm. In this regime, no suitable material for birefringent optics is available. Instead we use a reflection induced phase shift to control the polarization. The Stokes parameter of the radiation are measured by a reflective vacuum ultraviolet polarizer. Circularly polarized light from this source is proposed to be used in spin-resolved photoelectron spectroscopy on surfaces.