High-Q microcavities realized in a circular photonic crystal slab

✍ Scribed by Sanshui Xiao; Min Qiu

• Book ID: 103882020
• Publisher: Elsevier Science
• Year: 2005
• Tongue: English
• Weight: 410 KB
• Volume: 3
• Category: Article
• ISSN: 1569-4410
• DOI: 10.1016/j.photonics.2005.09.001

✦ Synopsis

A series of microcavities in circular photonic crystal slabs are studied in this paper. It is shown that high quality factors can be obtained for such microcavities. For a cavity with three inner layers of air holes missing, Q factor larger than 10 5 can be obtained. It is also worth noting there exists resonant modes with high quality factors, even for the defect-free circular photonic crystal slab, due to gradual change of the average effective index.