TY - JOUR
T1 - Phase-shifting interferometry based on the lateral displacement of the light source
AU - Robledo-Sanchez, Carlos
AU - Juarez-Salazar, Rigoberto
AU - Meneses-Fabian, Cruz
AU - Guerrero-Sánchez, Fermin
AU - Aguilar, L. M.Arevalo
AU - Rodriguez-Zurita, Gustavo
AU - Ixba-Santos, Viridiana
PY - 2013/7/15
Y1 - 2013/7/15
N2 - A simple and inexpensive optical setup to phase-shifting interferometry is proposed. This optical setup is based on the Twyman-Green Interferometer where the phase shift is induced by the lateral displacement of the point laser source. A theoretical explanation of the induced phase by this alternative method is given. The experimental results are consistent with the theoretical expectations. Both, the phase shift and the wrapped phase are recovered by a generalized phase-shifting algorithm from two or more interferograms with arbitrary and unknown phase shift. The experimental and theoretical results show the feasibility of this unused phase-shifting technique.
AB - A simple and inexpensive optical setup to phase-shifting interferometry is proposed. This optical setup is based on the Twyman-Green Interferometer where the phase shift is induced by the lateral displacement of the point laser source. A theoretical explanation of the induced phase by this alternative method is given. The experimental results are consistent with the theoretical expectations. Both, the phase shift and the wrapped phase are recovered by a generalized phase-shifting algorithm from two or more interferograms with arbitrary and unknown phase shift. The experimental and theoretical results show the feasibility of this unused phase-shifting technique.
UR - http://www.scopus.com/inward/record.url?scp=84880519776&partnerID=8YFLogxK
U2 - 10.1364/OE.21.017228
DO - 10.1364/OE.21.017228
M3 - Artículo
SN - 1094-4087
VL - 21
SP - 17228
EP - 17233
JO - Optics Express
JF - Optics Express
IS - 14
ER -