Affiliation:
1. Montana State University
Abstract
We demonstrate that a time of flight (TOF) camera can be used to
perform range selective temporal-heterodyne frequency-modulated
continuous wave digital holography (TH FMCW DH). The modulated arrayed
detection of a TOF camera allows efficient integration of holograms at
a selected range with range resolutions significantly less than the
optical system’s depth of field. TH FMCW DH also allows for
on-axis geometries to be achieved, where background light not at the
internal modulation frequency of the camera is filtered out. Range
selective TH FMCW DH imaging was achieved for both image holograms and
Fresnel holograms using on-axis DH geometries. A 2.39 GHz FMCW
chirp bandwidth resulted in a DH range resolution of
6.3 cm.
Subject
Atomic and Molecular Physics, and Optics,Engineering (miscellaneous),Electrical and Electronic Engineering
Cited by
2 articles.
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1. Range-selective FMCW digital holography for imaging through scattering environments;Practical Holography XXXVIII: Displays, Materials, and Applications;2024-03-13
2. Range selective frequency-modulated digital holography with temporal-heterodyning;Practical Holography XXXVIII: Displays, Materials, and Applications;2024-03-13