Title :
Rapid wide-field heterodyne interferometry with custom 2D CMOS camera
Author :
Zhang, J. ; See, C.W. ; Smith, R.J. ; Johnston, N.S. ; Pitter, M.C. ; Somekh, M.G. ; Light, R.A.
Author_Institution :
Inst. of Biophys. , Imaging & Opt. Sci., Univ. of Nottingham, Nottingham, UK
Abstract :
A wide-field pseudo-heterodyne interference contrast microscope is described, which employs a complementary metal-oxide semiconductor (CMOS) phase-sensitive camera. The use of multiple wells in the camera enables extremely rapid measurement of a full phase field at high resolution and the modulation frequency is not limited by the camera frame rate. The high data acquisition frequency allows the effects of microphonics to be frozen to mitigate the effect of low-frequency disturbance.
Keywords :
CMOS image sensors; heterodyne detection; light interferometry; optical microscopes; complementary metal-oxide semiconductor phase-sensitive camera; custom 2D CMOS camera; high data acquisition frequency; high resolution; low-frequency disturbance; microphonics; modulation frequency; multiple wells; rapid wide field heterodyne interferometry; wide field pseudoheterodyne interference contrast microscope;
Journal_Title :
Electronics Letters
DOI :
10.1049/el.2015.0268
