| 摘要 |
PROBLEM TO BE SOLVED: To provide various techniques for roughly including methods for sensing optical cavity output light by means of one or more ICs. SOLUTION: When a specimen 22 is absent, a cavity 20 provides output light equipped with peaks 26 and 28 of an intensity/energy correlation diagram as in a graph 24. If the specimen 22 exists, the cavity 20 provides output light affected by the specimen and equipped with peaks 30 and 32 of a different intensity/energy correlation diagram. Central energy of the respective peaks is shifted by a change in the refractive index, for example, of the specimen 22. The amplitude and contrast of the peak 32 are also reduced from the peak 28 because of a change in an absorbed amount caused by the specimen 22, for example. Further, FWHM of the peak 32 also is increased from the peak 28 because of an absorbed amount increased. The output light affected by the specimen is transmitted by a constituent element 14 such as a transmitting layer structure. COPYRIGHT: (C)2008,JPO&INPIT
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