Title :
Plasmonic nanoantennas on nanopedestals for ultra-sensitive vibrational IR-spectroscopy
Author :
Etezadi, Dordaneh ; Cetin, Arif E. ; Altug, Hatice
Author_Institution :
Dept. of Electr. & Comput. Eng., Boston Univ., Boston, MA, USA
Abstract :
We experimentally demonstrate that elevating polarization-insensitive nanoring antennas on nanopedestals enables high surface enhanced infrared absorption (SEIRA) signals. This is due to larger and accessible nearfields offering better overlap with biomolecules.
Keywords :
infrared spectroscopy; light polarisation; metamaterial antennas; molecular biophysics; nanophotonics; plasmonics; biomolecules; nanopedestals; plasmonic nanoantennas; polarization-insensitive nanoring antennas; surface enhanced infrared absorption signals; ultrasensitive vibrational IR-spectroscopy; Absorption; Proteins; Reflection; Reflector antennas; Silicon nitride; Substrates;
Conference_Titel :
Lasers and Electro-Optics (CLEO), 2015 Conference on
Conference_Location :
San Jose, CA
