Trends in Nano- and Micro-Cavities


O'Dae Kwon, Byoungho Lee, Kyungwon An

DOI: 10.2174/97816080523631110101
eISBN: 978-1-60805-236-3, 2011
ISBN: 978-1-60805-109-0

Indexed in: Scopus, EBSCO.

This ebook is a collection of cutting edge articles from the 2009 Workshop on Microcavities and their Applications (WOMA 2009). It giv...[view complete introduction]
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Review on unidirectional light emission from ultralow-loss modes in deformed microdisks

- Pp. 109-152 (44)

Jan Wiersig, Julia Unterhinninghofen, Qinghai Song, Hui Cao, Martina Hentschel and Susumu Shinohara


In microdisk cavities, whispering-gallery optical modes are confined by total internal reflection at the boundary of the disk. The small mode volumes and the ultralow losses of the modes offer a high potential for several applications, such as low-threshold lasing. The uniform in-plane light emission from an ideal disk with circular cross section, however, is a significant drawback. In this chapter we review the recent progress in microdisk design for unidirectional light emission from modes with low losses. We compare and discuss the pros and cons of various approaches. One important aspect is the ray-wave correspondence in such deformed microdisks.

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