Abstract
A novel frequency-swept ultrasound-modulated optical tomography technique was developed to image scattering media. A frequency-swept ultrasonic wave was used to modulate the laser light passing through a scattering medium. The modulated light was received by an optical detector and was heterodyned with a reference frequency sweep. The heterodyned signal was recorded in the time domain and was then analyzed in the frequency domain to yield a one-dimensional image along the ultrasonic axis. Multiple one-dimensional images obtained at various positions perpendicular to the ultrasonic axis were combined to yield a two-dimensional tomographic image of the medium.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 975-977 |
| Number of pages | 3 |
| Journal | Optics Letters |
| Volume | 23 |
| Issue number | 12 |
| DOIs | |
| State | Published - Jun 15 1998 |
ASJC Scopus subject areas
- Atomic and Molecular Physics, and Optics