Editing Optical coherence tomography (section)

===Single point===
Systems based on single point, confocal, or flying-spot time domain OCT, must scan the sample in two lateral dimensions and reconstruct a three-dimensional image using depth information obtained by coherence-gating through an axially scanning reference arm (Fig. 2). Two-dimensional lateral scanning has been electromechanically implemented by moving the sample<ref name="Fercher2">{{cite journal |vauthors=Fercher AF, Hitzenberger CK, Kamp G, El-Zaiat SY |year=1995 |title=Measurement of intraocular distances by backscattering spectral interferometry |journal=Optics Communications |volume=117 |issue=1–2 |pages=43–48 |bibcode=1995OptCo.117...43F |doi=10.1016/0030-4018(95)00119-S}}</ref> using a translation stage, and using a novel micro-electro-mechanical system scanner.<ref>{{cite journal | vauthors = Yeow JT, Yang VX, Chahwan A, Gordon ML, Qi B, Vitkin IA, Wilson BC, Goldenberg AA |doi=10.1016/j.sna.2004.06.021|title=Micromachined 2-D scanner for 3-D optical coherence tomography|year=2005|journal=Sensors and Actuators A: Physical|volume=117|pages=331–340|issue=2 |bibcode=2005SeAcA.117..331Y }}</ref>