Observation of biexciton-resonant hyper-parametric scattering in SiO 2/CUCl layered structures

Masaaki Nakayama, Takashi Nishioka, Shuji Wakaiki, Goro Oohata, Kohji Mizoguchi, DaeGwi Kim, Keiichi Edamatsu

研究成果: Article査読

5 被引用数 (Scopus)

抄録

We have prepared SiO2/CuCl layered structures and investigated the structural and optical properties, focusing on the observation of biexciton-resonant hyper-parametric scattering that is a promising process to generate entangled photons. A crystalline CuCl film, which is the active layer, was grown on an Al2O3 substrate by a vacuum deposition method, and then an amorphous SiO2 film as the passivation layer for hygroscopic CuCl was prepared by an rf-magnetron sputtering method. X-ray diffraction patterns and optical spectra of excitons indicate that the growth of the SiO2-passivation layer does not degrade the crystallinity of the underlying CuCl thin film. It has been demonstrated that the biexciton-resonant hyper-parametric scattering is clearly observable in the SiO2/CuCl layered structure.

本文言語English
ジャーナルJapanese Journal of Applied Physics, Part 2: Letters
46
8-11
DOI
出版ステータスPublished - 2007 3 9

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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