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Transparent glass slab thickness measurement by binary-spot focus signal
(2019-12-12)
Focus error systems based on the astigmatic principle relying on four quadrant photo detectors as
the signal generation element have widely been used in many different applications. Nevertheless, its
working principle ...
Preliminary study of a heterodyne detection system for optical coherence tomography signals
(2019-10-24)
A heterodyne detection system for optical coherence tomography signalsis presented and characterized. The system allows to expand the range of measurement and overcome the limitations of conventional systems which typically ...
Extensión del rango dinámico de la tomografía óptica coherente sensible a la fase
(RAFA - Santa Fé, 2019-10)
La tomografía óptica coherente sensible a la fase (PhS-OCT), también conocida como microscopía de fase (SDPM), es una técnica que se basa en la medición de la fase en la señal de interferencia obtenida por tomografía óptica ...
Large Axial Range Frequency-Domain Optical Low Coherence Interferometry
(2019-01-15)
In this paper, we propose a new experimental setup to extend the measurement range of frequency-domain low coherence interferometry (FD-LCI) from 3 mm to 2 cm. The FD-LCI can be extended to the technique of frequency domain ...