12,000

We have over 12,000 students, from over 100 countries, within one of the safest campuses in the UK

93%

93% of Lancaster students go into work or further study within six months of graduating

Home > Research > Publications & Outputs > Optical Heterodyne Force Microscopy
View graph of relations

« Back

Optical Heterodyne Force Microscopy

Research output: Contribution in Book/Report/ProceedingsConference contribution

Published

Publication date1998
Host publicationUltrasonics Symposium, 1998. Proceedings., 1998 IEEE
EditorsS. C. Schneider, M. Levy, B. R. McAvoy
Place of publicationNew York
PublisherIEEE
Pages1269-1272
Number of pages4
Volume2
ISBN (Print)0-7803-4096-5
Original languageEnglish

Conference

Conference1998 IEEE Ultrasonics Symposium
CitySENDAI
Period5/10/988/10/98

Conference

Conference1998 IEEE Ultrasonics Symposium
CitySENDAI
Period5/10/988/10/98

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.