Share Email Print
cover

Proceedings Paper

Temporal speckle correlations for optical alignment
Author(s): Florian Schurig; Damien P. Kelly
Format Member Price Non-Member Price
PDF $14.40 $18.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper Abstract

It is possible to use of 3D lateral and longitudinal static speckle fields to determine the location of the optical axis in a system. In this manuscript we examine a variation of this idea where we use the 3D temporal correlation properties of multiple speckle fields to determine the axis. Previously it was shown how a spatial averaging approach could be used to estimate the 3D speckle orientation, here we compare the characteristics of this spatial averaging technique to a temporal averaging approach (where multiple speckle fields are used to produce an ensemble), experimental results are compared with the theoretical predictions and we present some conclusions.

Paper Details

Date Published: 1 May 2017
PDF: 9 pages
Proc. SPIE 10220, Dimensional Optical Metrology and Inspection for Practical Applications VI, 102200F (1 May 2017); doi: 10.1117/12.2262489
Show Author Affiliations
Florian Schurig, Technische Univ. Ilmenau (Germany)
Damien P. Kelly, Technische Univ. Ilmenau (Germany)


Published in SPIE Proceedings Vol. 10220:
Dimensional Optical Metrology and Inspection for Practical Applications VI
Kevin G. Harding; Song Zhang, Editor(s)

© SPIE. Terms of Use
Back to Top