发明名称 |
Two-dimensional photonic crystal having air-bridge structure and method for manufacturing such a crystal |
摘要 |
The present invention intends to provide a two-dimensional photonic crystal having a high level of mechanical strength and functioning as a high-efficiency resonator. The two-dimensional photonic crystal according to the present invention includes a slab layer 31 under which a clad layer 32 is located. In the slab layer 31, areas 35 having a refractive index different from that of the slab layer 31 are cyclically arranged to create a two-dimensional photonic crystal. A portion of the cyclic arrangement of the areas 35 are omitted to form a point-like defect 36. This defect 36 functions as a resonator at which a specific wavelength of light resonates. An air-bridge cavity 37 facing the point-like defect 36 is formed over a predetermined range of the clad layer 32. In this construction, the clad layer 32 supports the slab layer 31 except for the range over which the air-bridge space 37 is formed. Therefore, the two-dimensional photonic crystal has a high level of mechanical strength. The presence of the air-bridge space 37 under the point-like defect 36 makes it easy to confine light at the point-like defect 36 by the difference in the refractive index between the slab layer 31 and the air. Thus, the point-like defect 36 functions as a high-performance resonator.
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申请公布号 |
US7333703(B2) |
申请公布日期 |
2008.02.19 |
申请号 |
US20060569879 |
申请日期 |
2006.02.28 |
申请人 |
KYOTO UNIVERSITY;TDK CORPORATION |
发明人 |
HATSUDA RANKO;NODA SUSUMU;ASANO TAKASHI;TANAKA YOSHINORI;MIYAI EIJI |
分类号 |
G02B6/10;C03B37/022;C03B37/023;C03B37/027;G02B6/12;G02B6/122;G02B6/13 |
主分类号 |
G02B6/10 |
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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