Planar chiral metamaterials for biosensing applications

Sangeeta Murugkar; Israel De Leon; Matthew Horton; Hammam Qassim; Jonathan Leach; Robert W. Boyd

doi:10.1117/12.2004748

21 February 2013 Planar chiral metamaterials for biosensing applications

Sangeeta Murugkar, Israel De Leon, Matthew Horton, Hammam Qassim, Jonathan Leach, Robert W. Boyd

Proceedings Volume 8597, Plasmonics in Biology and Medicine X; 85970Y (2013) https://doi.org/10.1117/12.2004748
Event: SPIE BiOS, 2013, San Francisco, California, United States

Abstract

There has been a considerable effort recently in the development of planar chiral metamaterials. Owing to the lack of inversion symmetry, these materials have been shown to display interesting physical properties such as negative index of refraction and giant optical activity. However, the biosensing capabilities of these chiral metamaterials have not been fully explored. Ultrasensitive detection and structural characterization of proteins adsorbed on chiral plasmonic substrates was demonstrated recently using UV-visible circular dichroism (CD) spectroscopy. Second harmonic generation microscopy is an extremely sensitive nonlinear optical probe to investigate the chirality of biomaterials. In this study, we characterize the chiral response of chiral plasmonic metamaterials using second harmonic generation microscopy and CD spectroscopy. These planar chiral metamaterials, fabricated by electron-beam lithography, consist of right-handed and left-handed gold gammadions of length 400 nm and thickness 100nm, deposited on a glass substrate and arranged in a square lattice with a periodicity of 800nm.

Citation Download Citation

Sangeeta Murugkar, Israel De Leon, Matthew Horton, Hammam Qassim, Jonathan Leach, and Robert W. Boyd "Planar chiral metamaterials for biosensing applications", Proc. SPIE 8597, Plasmonics in Biology and Medicine X, 85970Y (21 February 2013); https://doi.org/10.1117/12.2004748

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available