Abstract

One-dimensional photoluminescent nano- or micro-crystals have been used as active optical waveguiding materials. The output photoluminescence (PL) spectra and decay characteristics through the one-dimensional crystals have been intensively investigated [1]. Raman waveguide can also provide optical signal transport by means of specific molecular interaction modes, such as vibrational and rotational modes in highly crystalline organic nano- or micro-structures. Raman waveguiding can transport multi-signals corresponding to various molecular orientations of the materials [2]. But the waveguided Raman signals are typically very week. Therefore the waveguided Raman signals must be enhanced for applications. Surface enhanced Raman scattering (SERS) effect can be utilized for effective waveguiding of Raman signals.

© 2015 Japan Society of Applied Physics, Optical Society of America