Fast Response Variable Focal-Length Lenses Using KTa1-xNbxO3 Crystals

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概要

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• We fabricated variable focal length lenses with fast responses by using the strong Kerr effect of KTa1-xNbxO3 single crystals. We observed focus shifts of about 40 mm with the assistance of a 250-mm-focal-length lens, which corresponds to a focus shift from infinity to 1.56 m without the assisting lens. The time response was as fast as 1 μs.

• 2011-02-25

著者

• Toyoda Seiji

  Ntt Photonics Laboratories Ntt Corporation

• Imai Tadayuki

  Ntt Photonics Laboratories

• Yagi Shogo

  Ntt Photonics Laboratories Nippon Telegraph And Telephone Corporation

• Fujiura Kazuo

  Ntt Advanced Technology Corporation

• Miyazu Jun

  Ntt Photonics Laboratories Ntt Corporation

• Sasaura Masahiro

  Ntt Photonics Laboratories Ntt Corporation

• Naganuma Kazunori

  NTT Advanced Technology Corporation, Atsugi, Kanagawa 243-0198, Japan

• Fujiura Kazuo

  NTT Advanced Technology Corporation, Atsugi, Kanagawa 243-0198, Japan

• Miyazu Jun

  NTT Photonics Laboratories, Nippon Telegraph and Telephone Corporation, Atsugi, Kanagawa 243-0198, Japan

• Imai Tadayuki

  NTT Photonics Laboratories, Nippon Telegraph and Telephone Corporation, Atsugi, Kanagawa 243-0198, Japan

• Sasaura Masahiro

  NTT Photonics Laboratories, Nippon Telegraph and Telephone Corporation, Atsugi, Kanagawa 243-0198, Japan

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