[13p-B401-1~9] 3.11 Photonic structures and phenomena

[13p-B401-5] Circularly polarized coherent light generation in the vacuum ultraviolet region using a square lattice photonic crystal nanomembrane

〇Kuniaki Konishi^1,2, Daisuke Akai³, Yoshio Mita⁴, Makoto Ishida³, Junji Yumoto¹, Makoto Kuwata-Gonokami¹ (1.Univ. of Tokyo, 2.JST PREST, 3.Toyohashi Tech., 4.Univ of Tokyo)

Keywords:photonic crystal, vacuum ultraviolet, circularly polarized light

Vacuum ultraviolet (VUV) ultrafast circularly polarized (CP) light sources are becoming important as probe light in time-resolved photoelectron spectroscopy and circular dichroism spectroscopy of biomolecules. Therefore, a method to generate coherent VUV CP light easily and practical intensity is required. In this study, we demonstrate that, when a femtosecond visible circularly polarized laser is incident on a square-latticed photonic crystal nanomembrane with four-fold rotational symmetry, the circularly polarized wavelength conversion into the VUV region is achieved due to the third harmonic generation.