Open AccessMultiwavelength-selective phase-shifting digital holography without mechanical scanning
Author(s) -
Tatsuki Tahara,
Yutaka Endo
Publication year - 2019
Publication title -
applied optics
Language(s) - Uncategorized
Resource type - Journals
SCImago Journal Rank - 0.668
H-Index - 197
eISSN - 2155-3165
pISSN - 1559-128X
DOI - 10.1364/ao.58.00g218
Subject(s) - optics , digital holography , holography , phase modulation , holographic interferometry , interferometry , liquid crystal on silicon , phase (matter) , materials science , spatial light modulator , digital holographic microscopy , wavelength , phase shift module , optoelectronics , liquid crystal display , physics , phase noise , insertion loss , quantum mechanics
We propose multiwavelength in-line phase-shifting digital holography with a monochrome image sensor, single reference arm, and no mechanical scanning. We use phase-shifting interferometry selectively extracting wavelength information as a method to obtain multiwavelength object waves separately from wavelength-multiplexed phase-shifted holograms. By exploiting a liquid crystal on silicon spatial light modulator with a wide phase-modulation range as an electrically driven phase shifter in this interferometry, we remove mechanically moving parts during phase shifting. Its effectiveness is experimentally demonstrated.