TY - GEN
T1 - Focused laser differential interferometer response to a controlled phase object
AU - Hameed, A.
AU - Parziale, N. J.
N1 - Publisher Copyright:
© 2021, American Institute of Aeronautics and Astronautics Inc, AIAA. All rights reserved.
PY - 2021
Y1 - 2021
N2 - In this paper, we characterize the response of the focused laser differential interferometer (FLDI) instrument to a controlled phase object. A thin, uni-directional, controlled phase object is created by vibrating a cylindrical lens in the beam path. Attached to this lens is an accelerometer from which displacement may be measured and, with knowledge of the lens geometry, the phase response of a differential interferometer may be calculated. We compare the phase response derived from the accelerometer to that measured by the FLDI. This accelerometer-derived phase change was found to be in excellent agreement with the FLDI-derived phase change for both single and double FLDI setups with different phase-object strengths (focal lengths) in both amplitude and frequency.
AB - In this paper, we characterize the response of the focused laser differential interferometer (FLDI) instrument to a controlled phase object. A thin, uni-directional, controlled phase object is created by vibrating a cylindrical lens in the beam path. Attached to this lens is an accelerometer from which displacement may be measured and, with knowledge of the lens geometry, the phase response of a differential interferometer may be calculated. We compare the phase response derived from the accelerometer to that measured by the FLDI. This accelerometer-derived phase change was found to be in excellent agreement with the FLDI-derived phase change for both single and double FLDI setups with different phase-object strengths (focal lengths) in both amplitude and frequency.
UR - http://www.scopus.com/inward/record.url?scp=85100297756&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85100297756&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:85100297756
SN - 9781624106095
T3 - AIAA Scitech 2021 Forum
SP - 1
EP - 10
BT - AIAA Scitech 2021 Forum
T2 - AIAA Science and Technology Forum and Exposition, AIAA SciTech Forum 2021
Y2 - 11 January 2021 through 15 January 2021
ER -