| 摘要 |
A resonator with a three-dimensional photonic crystal having a fewer number of layers presenting a basic period, having a wide frequency band presenting a complete photonic band gap, and operating in a single mode, as well as a device using the same are provided, the three-dimensional photonic crystal including a period defect member and a period structure member having periodically laminated plural layers including a refractive-index periodic structure, the plural layers including first to fourth layers each having a periodic structure, the period defect member being provided by a columnar structure disposed at the second or fourth layer and on an axis of the columnar structure formed in the second or fourth layer.
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