The 81st JSAP Autumn Meeting, 2020

Presentation information

Oral presentation

4 JSAP-OSA Joint Symposia 2020 » 4.1 Plasmonics and Nanophotonics

[9a-Z16-2~6] 4.1 Plasmonics and Nanophotonics

Wed. Sep 9, 2020 10:00 AM - 12:00 PM Z16

Prabhat Verma(Osaka Univ.)

11:30 AM - 11:45 AM

[9a-Z16-5] Numerical study of photonic nanojet effect on metal nanopillars SERS substrate

HSIEN-CHI LAI1, YU-JUI WANG1, JIA-HAN LI1 (1.National Taiwan Univ.)

Keywords:surface-enhanced Raman scattering, photonic nanojet, finite-difference time-domain method

The surface-enhanced Raman scattering has been used for many applications such as chemical analysis and biological detection. An enhancement method can be used by applying the photonic nanojets, which is a narrow, high intensity light beam and can be generated by the microspheres attached on the SERS substrates. We consider to use the commercial metal nanopillars SERS substrate which is coated with polystyrene microspheres. The field intensities and enhancements by the micro/nano structure can be analyzed by the finite-difference time-domain method. It is found that the electric field intensity is effectively increased by photonic nanojet generated by adding microspheres. This method by combination of SERS and photonic nanojet indicate the potential of Raman enhancement.