V
Virgil-Florin Duma
Researcher at Aurel Vlaicu University of Arad
Publications - 175
Citations - 1453
Virgil-Florin Duma is an academic researcher from Aurel Vlaicu University of Arad. The author has contributed to research in topics: Optical coherence tomography & Galvanometer. The author has an hindex of 20, co-authored 154 publications receiving 1195 citations. Previous affiliations of Virgil-Florin Duma include University of Rochester & The Institute of Optics.
Papers
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Journal ArticleDOI
Experimental investigations of the scanning functions of galvanometer-based scanners with applications in OCT
TL;DR: The three most common profiles of scanning functions for galvanometer-based scanners (GSs): the sawtooth, triangular and sinusoidal functions are analyzed and certain rules of thumb are deduced to make the best out of the galvoscanner.
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MEMS-based handheld scanning probe with pre-shaped input signals for distortion-free images in Gabor-domain optical coherence microscopy
Andrea Cogliati,Cristina Canavesi,A. B. Hayes,Patrice Tankam,Virgil-Florin Duma,Anand P. Santhanam,Kevin P. Thompson,Jannick P. Rolland +7 more
TL;DR: This paper reports on how pre-shaped open-loop input signals with tailored non-linear parts were implemented in a custom control board and, unlike the sinusoidal signals typically used for MEMS, achieved real-time distortion-free imaging without post-processing.
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Design and testing of prototype handheld scanning probes for optical coherence tomography
Dorin Demian,Virgil-Florin Duma,Cosmin Sinescu,Meda Lavinia Negrutiu,Ramona Cernat,Florin Topala,Gheorghe Hutiu,Adrian Bradu,Adrian Gh. Podoleanu +8 more
TL;DR: Three simple and low-cost configurations of handheld scanning probes for optical coherence tomography have been developed and tested, testing the quality of the material of one of the most used types of dental prosthesis, metalo-ceramic, is demonstrated.
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Optimization of galvanometer scanning for optical coherence tomography
TL;DR: The effective duty cycle of galvanometer-based scanners (GSs) is studied with regard to three main parameters of the scanning process: theoretical/imposed duty cycle, scan frequency, and scan amplitude.
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Optimal scanning function of a galvanometer scanner for an increased duty cycle
TL;DR: In this article, different possible scanning functions of a galvanometer-based scanner (GS) were considered with an optimal profile for the user, i.e., symmetrical, linear on their active portions, and with fast stop-and-turn parts.