Analysis of transmission through slit and multiple grooves structures for biosensors

Bong Ho Kim; Bikash Nakarmi; Yong Hyub Won

doi:10.1117/12.2075957

11 March 2015 Analysis of transmission through slit and multiple grooves structures for biosensors

Bong Ho Kim, Bikash Nakarmi, Yong Hyub Won

Proceedings Volume 9340, Plasmonics in Biology and Medicine XII; 93400U (2015) https://doi.org/10.1117/12.2075957
Event: SPIE BiOS, 2015, San Francisco, California, United States

Abstract

We analyze the transmission property of nanostructures made on silver and gold metal for the applications in optical biosensors. Various structures such as slit only, slit groove slit, and multiple slit and groove structures are taken into account to find the effect of various physical parameters such as number of grooves, number of slits and others on the transmission of different wavelength light sources through the structure. A broad wavelength of 400 nm to 900 nm is used to analyze the transmission through the structure. With these structures and broad light source, change in transmission intensity is analyzed with the change in the refractive index. The change in refractive index of the analyte varies transmission intensity and wavelength shift at the output beam which can be used for sensing the amount of analyte such as monitoring glucose amount on blood/saliva, hydrogen peroxide and others. The detection of these analytes can be used to detect the different disease. The analysis of the transmittance through the nanostructure can be used for the detection of several disease such as diabetes and others through the saliva, blood and others non-invasively.

Citation Download Citation

Bong Ho Kim, Bikash Nakarmi, and Yong Hyub Won "Analysis of transmission through slit and multiple grooves structures for biosensors", Proc. SPIE 9340, Plasmonics in Biology and Medicine XII, 93400U (11 March 2015); https://doi.org/10.1117/12.2075957

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