发明名称 |
PHOTONIC-CRYSTAL SURFACE EMITTING LASER, LASER ARRAY USING THE LASER, AND IMAGE FORMING APPARATUS USING THE LASER ARRAY |
摘要 |
A laser structure is provided in which an influence caused by a concave-convex structure on laser characteristics is reduced when the Epitaxial Lateral Overgrowth (ELO) technique is applied to a photonic-crystal surface emitting laser. A height of the mask structure is set such that a reflection peak wavelength of 0-th order diffracted light and a reflection peak wavelength of first-order diffracted light differ from each other for light that enters a concave-convex periodic structure, which is constituted by a first layer and a mask structure, from a photonic crystal. Further, reflection intensity of the 0-th order diffracted light from the concave-convex periodic structure is larger than reflection intensity of the first-order diffracted light from the concave-convex periodic structure at an oscillation wavelength λ. |
申请公布号 |
US2012063480(A1) |
申请公布日期 |
2012.03.15 |
申请号 |
US201113230647 |
申请日期 |
2011.09.12 |
申请人 |
NAGATOMO YASUHIRO;KAWASHIMA SHOICHI;CANON KABUSHIKI KAISHA |
发明人 |
NAGATOMO YASUHIRO;KAWASHIMA SHOICHI |
分类号 |
H01S3/16 |
主分类号 |
H01S3/16 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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