Heavy water detection using ultra-high-Q microcavities

Abstract

Ultra-high-Q optical microcavities $(\mathit{Q}>{10}^7)$ provide one method for distinguishing chemically similar species. Resonators immersed in ${\mathrm{H}}_2\mathrm{O}$ have lower quality factors than those immersed in ${\mathrm{D}}_2\mathrm{O}$ due to the difference in optical absorption. This difference can be used to create a ${\mathrm{D}}_2\mathrm{O}$ detector. This effect is most noticeable at $1300\mathrm{nm}$, where the $\mathit{Q}\left({\mathrm{H}}_2\mathrm{O}\right)$ is ${10}^6$ and the $\mathit{Q}\left({\mathrm{D}}_2\mathrm{O}\right)$ is ${10}^7$. By monitoring Q, concentrations of $0.0001\%$ [1 part in ${10}^6$ per volume] of ${\mathrm{D}}_2\mathrm{O}$ in ${\mathrm{H}}_2\mathrm{O}$ have been detected. This sensitivity represents an order of magnitude improvement over previous techniques. Reversible detection was also demonstrated by cyclic introduction and flushing of ${\mathrm{D}}_2\mathrm{O}$.

© 2006 Optical Society of America

Photoelastic ultrasound detection using ultra-high-Q silica optical resonators

Maria V. Chistiakova and Andrea M. Armani
Opt. Express 22(23) 28169-28179 (2014)

Mid-IR absorption sensing of heavy water using a silicon-on-sapphire waveguide

Neetesh Singh, Alvaro Casas-Bedoya, Darren D. Hudson, Andrew Read, Eric Mägi, and Benjamin J. Eggleton
Opt. Lett. 41(24) 5776-5779 (2016)

Temperature-insensitive detection of low-concentration nanoparticles using a functionalized high-Q microcavity

Wei-Liang Jin, Xu Yi, Yi-Wen Hu, Bei-Bei Li, and Yun-Feng Xiao
Appl. Opt. 52(2) 155-161 (2013)

Yb-doped glass microcavity laser operation in water

Eric P. Ostby and Kerry J. Vahala
Opt. Lett. 34(8) 1153-1155 (2009)

Ultra-High Q/V Fabry-Perot microcavity on SOI substrate

P. Velha, E. Picard, T. Charvolin, E. Hadji, J. C. Rodier, P. Lalanne, and D. Peyrade
Opt. Express 15(24) 16090-16096 (2007)