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TWO-DIMENSIONAL PHOTONIC CRYSTAL SURFACE-EMITTING LASER

外国特許コード F160008691
掲載日 2016年3月10日
出願国 世界知的所有権機関(WIPO)
国際出願番号 2014JP054429
国際公開番号 WO 2014136607
国際出願日 平成26年2月25日(2014.2.25)
国際公開日 平成26年9月12日(2014.9.12)
優先権データ
  • 特願2013-046564 (2013.3.8) JP
発明の名称 (英語) TWO-DIMENSIONAL PHOTONIC CRYSTAL SURFACE-EMITTING LASER
発明の概要(英語) The present invention provides a two-dimensional photonic crystal surface-emitting laser that emits a tilted beam, enables an inclination angle to be increased, and has minimal loss of light. The laser has a configuration wherein a two-dimensional photonic crystal (2DPC) layer (11), which has a refractive index formed as a result of holes (111) being two-dimensionally arranged on a plate-like base material (114), and an active layer (12), which produces light having a wavelength λL by injecting a current, are laminated. The laser oscillates a laser beam at an inclination angle θ from the normal of the 2PDC layer (11). The holes (111) in the 2DPC layer (11) form a resonant state for the light having a wavelength λL by forming a two-dimensional standing wave, and are arranged to provide modulation at each lattice point of a basic two-dimensional lattice having periodicity defined in such a manner that the light is not emitted externally. The phase, Ψ, of the modulation is represented by, Ψ = r↑•G'↑, using: a reciprocal lattice vector, G'↑ = (g'x, g'y) = (kx±|k↑|(sinθcosφ)/neff, ky±|k↑|(sinθsinφ)/neff), which is represented using the wave vector, k↑ = (kx, ky), of the light having a wavelength, λL, in the 2DPC layer (11), the effective refractive index, neff, of the 2DPC layer (11), and the azimuth, φ, from a prescribed reference line of the basic two-dimensional lattice; and the position vector, r↑, of each lattice point.
  • 出願人(英語)
  • ※2012年7月以前掲載分については米国以外のすべての指定国
  • JAPAN SCIENCE AND TECHNOLOGY AGENCY
  • 発明者(英語)
  • NODA SUSUMU
  • OKINO TSUYOSHI
  • KITAMURA KYOKO
  • TANAKA YOSHINORI
  • LIANG YONG
国際特許分類(IPC)
指定国 National States: AE AG AL AM AO AT AU AZ BA BB BG BH BN BR BW BY BZ CA CH CL CN CO CR CU CZ DE DK DM DO DZ EC EE EG ES FI GB GD GE GH GM GT HN HR HU ID IL IN IR IS JP KE KG KN KP KR KZ LA LC LK LR LS LT LU LY MA MD ME MG MK MN MW MX MY MZ NA NG NI NO NZ OM PA PE PG PH PL PT QA RO RS RU RW SA SC SD SE SG SK SL SM ST SV SY TH TJ TM TN TR TT TZ UA UG US UZ VC VN ZA ZM ZW
ARIPO: BW GH GM KE LR LS MW MZ NA RW SD SL SZ TZ UG ZM ZW
EAPO: AM AZ BY KG KZ RU TJ TM
EPO: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
OAPI: BF BJ CF CG CI CM GA GN GQ GW KM ML MR NE SN TD TG
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