Schematic of SAN system.
(a) Spectrum generated by the Ti:sapphire laser and PCF, and (b) spectrum transmitted through the metal-coated aperture probe with the incident laser wavelengths of 760, 780, 860, and 880 nm.
Absorption spectra of R6G measured by (a) our SAN system and (b) general spectrophotometer.
Near-field (a) transmission, (b) absorption images of R6G, and (c) line profile of absorption image of R6G.
Article metrics loading...
Full text loading...