Anti-Reflection Coating for Nitrogen-Vacancy Optical Measurements in Diamond

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Anti-Reflection Coating for Nitrogen-Vacancy Optical Measurements in Diamond

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Title: Anti-Reflection Coating for Nitrogen-Vacancy Optical Measurements in Diamond
Author: Yeung, T. K.; LeSage, David Anthony; Pham, Linh My; Stanwix, P. L.; Walsworth, Ronald L.

Note: Order does not necessarily reflect citation order of authors.

Citation: Yeung, T. K., D. Le Sage, L. M. Pham, P. L. Stanwix, and R. L. Walsworth. 2012. Anti-Reflection Coating for Nitrogen-Vacancy Optical Measurements in Diamond. Applied Physics Letters 100, no. 25: 251111.
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Abstract: We realize anti-reflection (AR) coatings for optical excitation and fluorescence measurements of nitrogen-vacancy (NV) color centers in bulk diamond by depositing quarter-wavelength thick silica layers on the diamondsurface. These AR coatings improve NV-diamond optical measurements by reducing optical reflection at the diamond-air interface from ≈17% to ≈2%, which allows more effective NV optical excitation and more efficient detection of NV fluorescence. We also show that diamondAR coatings eliminate standing-wave interference patterns of excitation laser intensity within bulk diamond, and thereby greatly reduce spatial variations in NV fluorescence, which can degrade spatially resolved magnetic field sensing using NV centers.
Published Version: doi:10.1063/1.4730401
Other Sources: http://walsworth.physics.harvard.edu/publications/2012_Yeung_APL.pdf
Terms of Use: This article is made available under the terms and conditions applicable to Other Posted Material, as set forth at http://nrs.harvard.edu/urn-3:HUL.InstRepos:dash.current.terms-of-use#LAA
Citable link to this page: http://nrs.harvard.edu/urn-3:HUL.InstRepos:11878775
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