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. © 2011 Optical Society of America.
Salerno, D., Brogioli, D., Croccolo, F., Ziano, R., Mantegazza, F. (2011). Photon correlation spectroscopy with incoherent light. OPTICS EXPRESS, 19(27), 26416-26422 [10.1364/OE.19.026416].
Photon correlation spectroscopy with incoherent light
SALERNO, DOMENICO;BROGIOLI, DORIANO COSTANTINO;ZIANO, ROBERTO;MANTEGAZZA, FRANCESCO
2011
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. © 2011 Optical Society of America.
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