Development of polarization-sensitive dual-comb spectroscopy for anisotropic materials

Kana A. Sumihara, Sho Okubo, Kenichi Oguchi, Hajime Inaba, Shinichi Watanabe

研究成果: Conference contribution


Dual-comb spectroscopy (DCS) is a modern method using two frequency combs with slightly different repetition rates [1,2]. The DCS down-converts a material response in the optical frequency domain to a rf signal that is easy to handle. It provides significant advantages over conventional spectroscopy such as high spectral resolution, broad spectral range, frequency precision, short measurement time, and so on. The DCS has mainly been applied to precise molecular gas spectroscopy [3]. There are several attempts to expand its application to solid state physics. One of the applications is the determination of complex refractive index of materials [4]. As changes in both the amplitude and phase inside the material can be measured by DCS, one can determine both the real and imaginary part of the refractive index without utilizing the Kramers-Kronig relation. In addition, we consider physically interesting materials such as low-dimensional nanostructures and polymers with polarization-dependent complex refractive index (optical anisotropy). For investigating their physical property, it is important to add polarization sensitiveness to the DCS. So far, we have developed a polarization-sensitive (PS) DCS using a rotating compensator polarimetry [5].

ホスト出版物のタイトルEuropean Quantum Electronics Conference, EQEC_2019
出版社OSA - The Optical Society
出版ステータスPublished - 2019 1 1
イベントEuropean Quantum Electronics Conference, EQEC_2019 - Munich, United Kingdom
継続期間: 2019 6 232019 6 27


名前Optics InfoBase Conference Papers
Part F143-EQEC 2019


ConferenceEuropean Quantum Electronics Conference, EQEC_2019
CountryUnited Kingdom

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Mechanics of Materials

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