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Ultracompact biochemical sensor built with two-dimensional photonic crystal microcavity
Abstract
We report an experimental demonstration of an ultracompact biochemical sensor based on a two-dimensional photonic crystal microcavity. The microcavity, fabricated on a silicon-on-insulator substrate, is designed to have a resonant wavelength (lambda) near 1.5 microm. The transmission spectrum of the sensor is measured with different ambient refractive indices ranging from n = 1.0 to n = 1.5. From observation of the shift in resonant wavelength, a change in ambient refractive index of delta(n) = 0.002 is readily apparent. The correspondence between absolute refractive index and resonant wavelength agrees with numerical calculation to within 4% accuracy. The evaporation of water in a 5% glycerol mixture is also used to demonstrate the capability for in situ time-resolved sensing.
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Citations
Cites
CRC Handbook of Chemistry and Physics
(2014) · doi:10.1201/b17118 · Cited by 57,706
Cited by
On the performance quantification of resonant refractive index sensors
White, I. M., & Fan, X. (2008) · Optics Express · doi:10.1364/oe.16.001020 · Cited by 1,105
Integrated optofluidics: A new river of light
Monat, C., Domachuk, P., & Eggleton, B. J. (2007) · Nature Photonics · doi:10.1038/nphoton.2006.96 · Cited by 955
Iqbal, M., Gleeson, M. A., Spaugh, B., Tybor, F., Gunn, W. G., Hochberg, M., Baehr-Jones, T., Bailey, R. C., & Gunn, L. C. (2010) · IEEE Journal of Selected Topics in Quantum Electronics · doi:10.1109/jstqe.2009.2032510 · Cited by 551
Metadata
- Authors
- Chow, E., Grot, A., Mirkarimi, L. W., Sigalas, M., & Girolami, G.
- Venue
- Optics Letters
- Publisher
- Optica Publishing Group
- Published
- 2004-05-14
- Volume
- 29
- Issue
- 10
- Pages
- 1093
- ISSN
- 0146-9592 (ISSN-L)
- 1539-4794
- OpenAlex
- W2079006799
- Cited by
- 479
- References
- 1
- FWCI
- 12.70
- Type
- journal article
- Language
- en
- Open access
- closed
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- Chow, E., Grot, A., Mirkarimi, L. W., Sigalas, M., & Girolami, G. (2004). Ultracompact biochemical sensor built with two-dimensional photonic crystal microcavity. Optics Letters. https://doi.org/10.1364/ol.29.001093
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