Title :
Ultra sensitive surface-enhanced Raman scattering detection using uniform sub-5 nm gap optical antennas
Author :
Seok, Tae Joon ; Eggleston, Michael ; Lakhani, Amit ; Kim, Myung-Ki ; Wu, Ming C.
Author_Institution :
Dept. of Electr. Eng. & Comput. Sci., Univ. of California, Berkeley, CA, USA
Abstract :
Arch-dipole optical antennas with uniform 5nm gaps have been fabricated on Si substrate using deep-UV “spacer” lithography. Strong surface-enhanced Raman scattering (SERS) signals with an enhancement factor of 1.1×108 have been measured.
Keywords :
antenna arrays; integrated optics; nanophotonics; optical arrays; optical fabrication; surface enhanced Raman scattering; ultraviolet lithography; SERS signals; Si; Si substrate; arch-dipole optical antennas; deep-UV spacer lithography; enhancement factor; ultrasensitive surface-enhanced Raman scattering; uniform gap optical antennas; Antenna arrays; Antenna measurements; Dipole antennas; Optical device fabrication; Optical polarization; Optical scattering;
Conference_Titel :
Lasers and Electro-Optics (CLEO), 2012 Conference on
Conference_Location :
San Jose, CA
Print_ISBN :
978-1-4673-1839-6
