We report highly-sensitive photoexpansion micro-spectroscopy using tunable quantum cascade lasers in mid-infrared and terahertz. High sensitivity is obtained by moving laser pulses repetition frequency in resonance with an atomic force microscope cantilever eigenfrequency. 50 nm spatial resolution is demonstrated with a tunable mid-IR QCL. © 2011 IEEE.
CITATION STYLE
Lu, F., & Belkin, M. A. (2011). Quantum-cascade laser-based nanoscale photoexpansion micro-spectroscopy in mid-infrared and terahertz. In IRMMW-THz 2011 - 36th International Conference on Infrared, Millimeter, and Terahertz Waves. https://doi.org/10.1109/irmmw-THz.2011.6104773
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