Title :
Differential Scanning Optical Microscopy with a THz quantum cascade laser source
Author :
Innocenti, R. Degl ; Kumar, M. ; Xu, J.H. ; Tredicucci, A.
Author_Institution :
NEST, Scuola Normale Superiore & Ist. Nanoscienze - CNR, Pisa, Italy
Abstract :
We present a differential Near-field Scanning Optical Microscope (NSOM) operating with subwavelength resolution in the THz spectral region. The system, which employs a quantum cascade laser emitting at λ =105 μm as source, has been been tested on metal and graphite objects, with a resolution of ~ λ/10.
Keywords :
near-field scanning optical microscopy; quantum cascade lasers; THz quantum cascade laser source; differential scanning optical microscopy; near-field scanning optical microscope; Apertures; Metals; Microscopy; Optical imaging; Optical microscopy; Optical sensors; Quantum cascade lasers;
Conference_Titel :
Infrared Millimeter and Terahertz Waves (IRMMW-THz), 2010 35th International Conference on
Conference_Location :
Rome
Print_ISBN :
978-1-4244-6655-9
DOI :
10.1109/ICIMW.2010.5612982
