Browsing Staff publications (SATM) by Author "Yacoot, Andrew"

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Correction of periodic displacement non-linearities by two-wavelength interferometry

Bridges, Angus; Yacoot, Andrew; Kissinger, Thomas; Humphreys, David A.; Tatam, Ralph P. (IOP, 2021-08-31)

Non-linearities in interferometric displacement measurements commonly affect both homodyne and heterodyne optical interferometers. Unwanted back reflections (ghost reflections) or polarisation leakage introduce non-linearity ...
Multiple intensity reference interferometry for the correction of sub-fringe displacement non-linearities

Bridges, Angus; Yacoot, Andrew; Kissinger, Thomas; Tatam, Ralph P. (IOP, 2021-12-06)

Displacement measuring interferometers, commonly employed for traceable measurements at the nanoscale, suffer from non-linearities in the measured displacement that limit the achievable measurement uncertainty for microscopic ...
Polarization-sensitive transfer matrix modeling for displacement measuring interferometry

Bridges, Angus; Yacoot, Andrew; Kissinger, Thomas; Tatam, Ralph P. (Optical Society of America, 2020-09-01)

The use of polarizing optics for both beam steering and phase measurement applications in displacement measuring interferometer designs is almost universal. Interferometer designs that employ polarizing optics in this ...

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