Title :
Optical heterodyne force microscopy
Author :
Kumano, N. ; Inagaki, K. ; Kolosov, O.V. ; Wright, O.B.
Author_Institution :
Fac. of Eng., Hokkaido Univ., Sapporo, Japan
Abstract :
We present a new technique, Optical Heterodyne Force Microscopy, that allows local probing of photothermally-induced ultrasonic vibrations of a sample surface. We demonstrate with images of a sample of highly-oriented pyrolytic graphite obtained at megahertz optical modulation frequencies that lateral resolution of surface and subsurface variations in thermal properties can be achieved on nanometer scales
Keywords :
acoustic microscopy; atomic force microscopy; heterodyne detection; optical microscopy; photothermal effects; C; highly oriented pyrolytic graphite; nanoscale surface imaging; optical heterodyne force microscopy; optical modulation; photothermal effect; thermal properties; ultrasonic vibration; Atomic force microscopy; Frequency; Optical imaging; Optical microscopy; Optical mixing; Optical modulation; Optical sensors; Thermal conductivity; Thermal force; Vibrations;
Conference_Titel :
Ultrasonics Symposium, 1998. Proceedings., 1998 IEEE
Conference_Location :
Sendai
Print_ISBN :
0-7803-4095-7
DOI :
10.1109/ULTSYM.1998.765070
