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Title: Super-resolution sensing with a randomly scattering analyzer
A randomly scattering analyzer with a multi-element fixed detector aperture located in the far field is introduced as a means to access enhanced spatial sensing information associated with far-subwavelength spatial features. This sensing method allows far-subwavelength spatial resolution with coherent fields scattered from a moving object, or some other relative change that causes a modified field incident on the detector aperture. Experimental optical speckle correlation data with a translated diffusing structure show the salient features, and understanding in relation to the experimental variables is supported by numerical simulations. The conclusion is that more-heavily-scattering analyzers provide better spatial resolution because the measurements are more sensitive to changes in the incident field. Such randomly scattering analyzers offer a new dimension for sensitive coherent optical metrology related to various sensing and motion application domains requiring large offset distances.  more » « less
Award ID(s):
1909660
PAR ID:
10518041
Author(s) / Creator(s):
; ;
Publisher / Repository:
Physical Review
Date Published:
Journal Name:
Physical Review Research
Volume:
3
Issue:
4
ISSN:
2643-1564
Page Range / eLocation ID:
L042045
Format(s):
Medium: X
Sponsoring Org:
National Science Foundation
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