Journal article
Multichannel, time-resolved picosecond laser ultrasound imaging and spectroscopy with custom complementary metal-oxide-semiconductor detector
Review of scientific instruments, Vol.81(2), pp.024901-024901
02/2010
DOI: 10.1063/1.3298606
PMID: 20192510
Abstract
This paper presents a multichannel, time-resolved picosecond laser ultrasound system that uses a custom complementary metal-oxide-semiconductor linear array detector. This novel sensor allows parallel phase-sensitive detection of very low contrast modulated signals with performance in each channel comparable to that of a discrete photodiode and a lock-in amplifier. Application of the instrument is demonstrated by parallelizing spatial measurements to produce two-dimensional thickness maps on a layered sample, and spectroscopic parallelization is demonstrated by presenting the measured Brillouin oscillations from a gallium arsenide wafer. This paper demonstrates the significant advantages of our approach to pump probe systems, especially picosecond ultrasonics.
Details
- Title: Subtitle
- Multichannel, time-resolved picosecond laser ultrasound imaging and spectroscopy with custom complementary metal-oxide-semiconductor detector
- Creators
- Richard J Smith - University of NottinghamRoger A Light - University of NottinghamSteve D Sharples - University of NottinghamNicholas S Johnston - University of NottinghamMark C Pitter - University of NottinghamMike G Somekh - University of Nottingham
- Resource Type
- Journal article
- Publication Details
- Review of scientific instruments, Vol.81(2), pp.024901-024901
- DOI
- 10.1063/1.3298606
- PMID
- 20192510
- NLM abbreviation
- Rev Sci Instrum
- ISSN
- 0034-6748
- eISSN
- 1089-7623
- Number of pages
- 6
- Language
- English
- Date published
- 02/2010
- Academic Unit
- Roy J. Carver Department of Biomedical Engineering; Molecular Physiology and Biophysics; Anatomy and Cell Biology; Stead Family Department of Pediatrics; Iowa Neuroscience Institute; Otolaryngology; Internal Medicine
- Record Identifier
- 9984006353202771
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