Title:
LIGHT-EMITTING ELEMENT
Document Type and Number:
WIPO Patent Application WO/2019/235535
Kind Code:
A1
Abstract:
An embodiment of the present invention relates to a surface-emitting light-emitting element comprising mainly a nitride semiconductor and having a layer forming a resonance mode. The light-emitting element increases the optical confinement coefficient of the layer forming resonance mode, and is provided with an active layer, a phase modulation layer, and one or more high refractive index layers. The light-emitting element is further provided with first and second cladding layer sandwiching the active layer, the phase modulation layer, and the high refractive index layer. The phase modulation layer includes a fundamental layer and a plurality of different refractive index regions. The plurality of different refractive index regions each have a center of gravity disposed on a straight line passing each lattice point of a virtual square lattice and inclined with respect to the square lattice. The distance between the center of gravity of each different refractive index region and the lattice point is set separately in accordance with an optical image.
Inventors:
AOKI YUTA (JP)
HIROSE KAZUYOSHI (JP)
OKAWARA SATORU (JP)
HIROSE KAZUYOSHI (JP)
OKAWARA SATORU (JP)
Application Number:
PCT/JP2019/022363
Publication Date:
December 12, 2019
Filing Date:
June 05, 2019
Export Citation:
Assignee:
HAMAMATSU PHOTONICS KK (JP)
International Classes:
H01S5/18
Domestic Patent References:
| WO2017191320A1 | 2017-11-09 |
Foreign References:
| JP2014027264A | 2014-02-06 | |||
| JP2007019277A | 2007-01-25 |
Attorney, Agent or Firm:
HASEGAWA Yoshiki et al. (JP)
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