Photon correlation spectroscopy with incoherent light
Abstract
Photon correlation spectroscopy (PCS) is based on measuring the temporal correlation of the light intensity scattered by the investigated sample. A typical setup requires a temporally coherent light source. Here, we show that a short-coherence light source can be used as well, provided that its coherence properties are suitably modified. This results in a "skewed-coherence" light beam allowing that restores the coherence requirements. This approach overcomes the usual need for beam filtering, which would reduce the total brightness of the beam.
- Publication:
-
Optics Express
- Pub Date:
- December 2011
- DOI:
- 10.1364/OE.19.026416
- arXiv:
- arXiv:1109.1218
- Bibcode:
- 2011OExpr..1926416S
- Keywords:
-
- Physics - Optics
- E-Print:
- 4 pages, 4 figures