Abstract
A photon pair density wave (PPDW) is initiated and compared with the conventional defused photon density wave (DPDW) to verify its optical properties generated by correlated parallel polarized pair photons propagating in a scattering medium. An optical heterodyne signal is generated by the scattered correlated pair photons in the scattering medium. However, the phase delay of the signal depends upon the beat frequency and the distance between source and detector. This is similar to DPDW at the lower modulated frequency of laser source in frequency domain. Spherical wave fronts of constant attenuated intensity and the phase delay of PPDW are observed in a homogenous scattering medium by using a lock-in amplifier. The assumption that polarized photon pairs propagating as photon density wave in a multiple scattering medium is verified experimentally. Optical properties of PPDW in the scattering medium are demonstrated successfully.
| Original language | English |
|---|---|
| Pages (from-to) | 259-272 |
| Number of pages | 14 |
| Journal | Proceedings of SPIE - The International Society for Optical Engineering |
| Volume | 4958 |
| DOIs | |
| State | Published - 2003 |
| Externally published | Yes |
| Event | PROGRESS IN BIOMEDICAL OPTICS AND IMAGING: Advanced Biomedical and Clinical Diagnostic Systems - San Jose, CA, United States Duration: 26 01 2003 → 28 01 2003 |
Keywords
- Diffusion equation
- Optical heterodyne
- Photon density wave
- Polarization