Abstract
The effect of thermal expansion on speckle correlation from surface scattering of a transparent dielectric slab was investigated. The speckle patterns on a CCD camera was recorded to calculate the cross-correlation C(T0,T0+ T) between speckle recorded at 25°C. Thermal expansion of the glass thickness creates a temperature dependent phase difference between the forward and backward scattered light. It was concluded that the correlation for two samples of different thickness oscillates with a frequency ratio proportional to the ratio of thickness.
| Original language | English |
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| Pages (from-to) | 1605-1607 |
| Number of pages | 3 |
| Journal | OSA Trends in Optics and Photonics Series |
| Volume | 88 |
| State | Published - 2003 |
| Event | Conference on Lasers and Electro-Optics (CLEO); Postconference Digest - Baltimore, MD, United States Duration: 1 Jun 2003 → 6 Jun 2003 |