High-speed phase-shifting common-path quantitative phase imaging with a piezoelectric actuator

Coquoz, SéverineNahas, AmirSison, MiguelLopez, AntonioLasser, Theo2017-01-042017-01-04201610.1117/1.JBO.21.12.126019https://infoscience.epfl.ch/handle/20.500.14299/132398WOS:000392914600044We present a phase-shifting quantitative phase imaging technique providing high temporal and spatial phase stability and high acquisition speed. A piezoelectric microfabricated phase modulator allows tunable modulation frequencies up to the kHz range. After assessing the quantitative phase accuracy with technical samples, we demonstrate the high acquisition rate while monitoring cellular processes at temporal scales ranging from milliseconds to hours.quantitative phase imagingcommon-pathhigh speedcellular processesHigh-speed phase-shifting common-path quantitative phase imaging with a piezoelectric actuatortext::journal::journal article::research article