지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2002.9
- 수록면
- 59 - 71 (13page)
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초록· 키워드
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Photonic band gap structures have a high potential for nearly zero-threshold lasers. This paper describes new-types of low-threshold photonic crystal lasers fabricated in InGaAsP slab waveguides free-standing in air. Two-types of photonic crystal lasers are studied. One is a single-cell nanocavity laser formed in a square array of air holes. This photonic band gap laser operates in the smallest possible whispering gallery mode with a theoretical Q ＞30000 and exhibits low threshold pump power of 0.8 ㎽ at room temperature. The other laser does not have any cavity structure and the lasing operation originates from the enhanced optical density of states near photonic band edges. A very low threshold of 35 ㎼ (incident pump power) is achieved from this laser at 80 K, one of the lowest values ever reported. This low threshold is benefited from low optical losses as well as enhanced material gain at low temperature.
목차
Abstract
Ⅰ. INTRODUCTION
Ⅱ. DESIGN AND FABRICATION
Ⅲ. SQUARE LATTICE PHOTONIC CRYSTAL SINGLE - CELL LASER
Ⅳ. FREE - STANDING PHOTONIC CRYSTAL SLAB BAND EDGE LASER
Ⅴ. CONCLUSION
ACKNOWLEDGEMENT
REFERENCES
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UCI(KEPA) : I410-ECN-0101-2009-425-018173448