Document Type
Article
Publication Date
2017
DOI
https://doi.org/10.1063/1.5002539
Abstract
As the use of Digital Micro Mirror Devices (DMDs) becomes more prevalent in optics research, the ability to precisely locate the Fourier “footprint” of an image beam at the Fourier plane becomes a pressing need. In this approach, Bayesian adaptive exploration techniques were employed to characterize the size and position of the beam on a DMD located at the Fourier plane. It couples a Bayesian inference engine with an inquiry engine to implement the search. The inquiry engine explores the DMD by engaging mirrors and recording light intensity values based on the maximization of the expected information gain. Using the data collected from this exploration, the Bayesian inference engine updates the posterior probability describing the beam’s characteristics. The process is iterated until the beam is located to within the desired precision. This methodology not only locates the center and radius of the beam with remarkable precision but accomplishes the task in far less time than a brute force search. The employed approach has applications to system alignment for both Fourier processing and coded aperture design.
Creative Commons License
This work is licensed under a Creative Commons Attribution 3.0 License.
Recommended Citation
Knuth, Kevin H.; Wynne, Kevin B.; and Petruccelli, Jonathan, "Enhanced optical alignment of a digital micro mirror device through Bayesian adaptive exploration" (2017). Physics Faculty Scholarship. 59.
https://scholarsarchive.library.albany.edu/physics_fac_scholar/59
Terms of Use
This work is made available under the Scholars Archive Terms of Use.
Comments
This is the Publisher’s PDF of the following article made available by AIP Advances: Kevin B. Wynne, Kevin H. Knuth, and Jonathan Petruccelli , "Enhanced optical alignment of a digital micro mirror device through Bayesian adaptive exploration", AIP Advances 7, 125207 (2017) https://doi.org/10.1063/1.5002539