Observation of whispering gallery modes in nanocrystalline diamond microdisks

被引：91

作者：

Wang, C. F. ^{[1
]}

Choi, Y- S.

Lee, J. C.

Hu, E. L.

Yang, J.

Butler, J. E.

机构：

[1] Univ Calif Santa Barbara, Dept Phys, Santa Barbara, CA 93106 USA

[2] Univ Calif Santa Barbara, Dept Elect & Comp Engn, Santa Barbara, CA 93106 USA

[3] USN, Res Lab, Gas Surface Dynam Sect, Washington, DC 20375 USA

[4] NOVA Res Inc, Alexandria, VA 22308 USA

来源：

APPLIED PHYSICS LETTERS | 2007年 / 90卷 / 08期

关键词：

D O I：

10.1063/1.2709626

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Nanocrystalline diamond microdisks have been fabricated and characterized. The process conditions were chosen to ensure smooth and vertical sidewalls. Focused ion beam milling was used to create ultrasmooth sidewalls. Whispering gallery modes were observed near the nitrogen-vacancy center emission wavelength (637 nm) by photoluminescence and near similar to 1550 nm by evanescent fiber coupling. The cavity quality factors (Q) are about 100 in both experiments. The Q's for these disks were calculated to be as high as 10(5) by three-dimensional finite-difference time-domain simulations. The authors believe the Q's to be limited by absorption and scattering within the nanocrystalline cavity material. (c) 2007 American Institute of Physics.

引用

页数：3

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