Thermal stability of wavefront shaping using a DMD as a spatial light modulator
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081731%3A_____%2F21%3A00549624" target="_blank" >RIV/68081731:_____/21:00549624 - isvavai.cz</a>
Result on the web
<a href="https://www.osapublishing.org/oe/fulltext.cfm?uri=oe-29-25-41808&id=465566" target="_blank" >https://www.osapublishing.org/oe/fulltext.cfm?uri=oe-29-25-41808&id=465566</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1364/OE.442284" target="_blank" >10.1364/OE.442284</a>
Alternative languages
Result language
angličtina
Original language name
Thermal stability of wavefront shaping using a DMD as a spatial light modulator
Original language description
Computer-controlled spatial modulation of coherent light has enabled multiple new ways of imaging through complex media. MEMS-based digital micromirror devices (DMDs) employed as spatial light modulators present considerably higher display frame rates compared to the popular alternative based on liquid crystal technology. For a progress beyond laboratory conditions, the digital hologram projected with a DMD needs to remain time-invariant after the wavefront correction. The thermal load of the DMD when operating at the highest display frame rates is one of the main sources of wavefront deviations that significantly impacts the imaging performance over time. In this work, we studied the wavefront deviations induced by temperature variation of the DMD, and show that they correspond to low-order aberrations which can be represented by Zernike polynomials up to the second order. Further, we study their influence on the focussing quality using wavefront shaping on two popular model systems – a highly-scattering diffuser and a multimode optical fibre – and verify a rapid degradation as the DMD temperature departs from the initial calibration temperature. By actively controlling and stabilizing the temperature of the DMD with a thermoelectric cooler, we demonstrate that the stability of high-speed DMD-based wavefront shaping systems can be greatly extended in time, without the need for recalibration.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10306 - Optics (including laser optics and quantum optics)
Result continuities
Project
<a href="/en/project/EF15_003%2F0000476" target="_blank" >EF15_003/0000476: Holographic endoscopy for in vivo applications</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2021
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Optics Express
ISSN
1094-4087
e-ISSN
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Volume of the periodical
29
Issue of the periodical within the volume
25
Country of publishing house
US - UNITED STATES
Number of pages
11
Pages from-to
41808-41818
UT code for WoS article
000726115900087
EID of the result in the Scopus database
2-s2.0-85120800967