Title:
EXCION POLARITON OPTICAL SWITCH
Document Type and Number:
WIPO Patent Application WO/2002/017011
Kind Code:
A1
Abstract:
Controlled light (7) having a specified wavelength and controlling light (6) having a specified wavelength are shone from a free space onto a polariton/photon interacting unit (5) comprising a waveguide having a cyclic structure, an optical switch to which the excitation of excion polariton, one of interactions between a radiation field and a substance system, is applied, which is excellent in quenching ratio and can operate at speeds of tera Hz order, and which is a grating (3) formed on the surface of a transparent substrate (2), and a semiconductor layer (4) covering the grating (3), thereby controlling the transmittance of the controlled light (7).
Inventors:
ISHIHARA TERUYA (JP)
Application Number:
PCT/JP2001/007090
Publication Date:
February 28, 2002
Filing Date:
August 17, 2001
Export Citation:
Assignee:
JAPAN SCIENCE & TECH CORP (JP)
RIKEN (JP)
ISHIHARA TERUYA (JP)
RIKEN (JP)
ISHIHARA TERUYA (JP)
International Classes:
G02F1/01; G02F1/017; G02F1/35; (IPC1-7): G02F1/35
Foreign References:
| US4915482A | 1990-04-10 |
Other References:
Tohru FUJITA, Yosihiro SATO, Tetsuya KUNITANI, Teruya ISHIHARA, "Tunable absorption of distributed feedback microcavities at room temperature", Physical Review B, Vol. 57, No. 19, (15 May, 1998), pages 12428 to 12434
Attorney, Agent or Firm:
Hirayama, Kazuyuki (Shinjukugyoen Building 3-10 Shinjuku 2-chome Shinjuku-ku, Tokyo, JP)
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