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TÝC, M. KVASNICA, L. SLABÁ, M. CHMELÍK, R.
Originální název
Numerical refocusing in digital holographic microscopy with extended-sources illumination
Typ
článek v časopise ve Web of Science, Jimp
Jazyk
angličtina
Originální abstrakt
Numerical refocusing can be seen as a method of compensating the defocus aberration based on deconvolution by inverse filtering [1] in digital holographic microscopy (DHM). It is well-understood in cases when a coherent (ie point and monochromatic) light source such as a collimated laser beam is used [2]. This paper extends the theory to the case of illumination by a quasi-monochromatic extended (spatially incoherent) source. Refocusing methods for spatially incoherent illumination are derived and benefits of this type of illumination are demonstrated. We have proved both theoretically and experimentally that coherent-based refocusing gives incorrect results for extended-source illumination, while results obtained using the newly derived method are correct.
Klíčová slova
Digital holography, microscopy, deconvolution, partial coherence in imaging, three-dimensional microscopy
Autoři
TÝC, M.; KVASNICA, L.; SLABÁ, M.; CHMELÍK, R.
Rok RIV
2013
Vydáno
18. 11. 2013
ISSN
1094-4087
Periodikum
OPTICS EXPRESS
Ročník
21
Číslo
23
Stát
Spojené státy americké
Strany od
28258
Strany do
28271
Strany počet
14
BibTex
@article{BUT102992, author="Matěj {Týč} and Lukáš {Kvasnica} and Michala {Slabá} and Radim {Chmelík}", title="Numerical refocusing in digital holographic microscopy with extended-sources illumination", journal="OPTICS EXPRESS", year="2013", volume="21", number="23", pages="28258--28271", doi="10.1364/OE.21.028258", issn="1094-4087" }