Title :
Tip-enhanced photoexpansion nano-spectroscopy using tunable quantum cascade lasers
Author :
Lu, Feng ; Belkin, Mikhail A.
Author_Institution :
Dept. of Electr. & Comput. Eng., Univ. of Texas at Austin, Austin, TX, USA
Abstract :
We report a novel mid-IR nano-spectroscopy technique. Absorption is detected by measuring associated sample expansion. High sensitivity and spatial resolution are obtained using local intensity enhancement below a metal atomic force microscope tip.
Keywords :
absorption; atomic force microscopy; infrared spectroscopy; quantum cascade lasers; absorption; associated sample expansion; local intensity enhancement; metal atomic force microscope tip; midinfrared nanospectroscopy technique; tip-enhanced photoexpansion nanospectroscopy; tunable quantum cascade lasers; Absorption; Microscopy; Plasmons; Quantum cascade lasers; Resonant frequency; Sensitivity; Spatial resolution;
Conference_Titel :
Lasers and Electro-Optics (CLEO), 2012 Conference on
Conference_Location :
San Jose, CA
Print_ISBN :
978-1-4673-1839-6
