Title :
Mid-infrared absorption microscopy with λ/100 spatial resolution using tunable quantum cascade lasers
Author :
Lu, Feng ; Belkin, Mikhail
Author_Institution :
Dept. of Electr. & Comput. Eng., Univ. of Texas at Austin, Austin, TX, USA
Abstract :
Highly-sensitive mid-infrared microscopy is reported. Subwavelength resolution is achieved by detecting absorption through local sample expansion. High sensitivity is obtained by moving laser pulses repetition rate in resonance with the atomic force microscope cantilever eigenfrequency.
Keywords :
laser tuning; light absorption; quantum cascade lasers; atomic force microscope cantilever eigenfrequency; highly-sensitive mid-infrared microscopy; laser pulses repetition rate; local sample expansion; mid-infrared absorption microscopy; spatial resolution; subwavelength resolution; tunable quantum cascade lasers; Absorption; Microscopy; Optical microscopy; Optical pulses; Quantum cascade lasers; Resonant frequency; Spatial resolution;
Conference_Titel :
Lasers and Electro-Optics (CLEO), 2011 Conference on
Conference_Location :
Baltimore, MD
Print_ISBN :
978-1-4577-1223-4
