Cepstrum-based interferometric microscopy (CIM) for quantitative phase imaging

Ricardo Rubio-Oliver, Javier García, Zeev Zalevsky, José Ángel Picazo-Bueno, Vicente Micó

Research output: Contribution to journalArticlepeer-review

1 Scopus citations

Abstract

A universal methodology for coding-decoding the complex amplitude field of an imaged sample in coherent microscopy is presented, where no restrictions on any of the two interferometric beams are required. Thus, the imaging beam can be overlapped with, in general, any other complex amplitude distribution and, in particular, with a coherent and shifted version of itself considering two orthogonal directions. The complex field values are retrieved by a novel Cepstrum-based algorithm, named as Spatial-Shifting Cepstrum (SSC), based on a weighted subtraction of the Cepstrum transform in the cross-correlation term of the object field spectrum in addition with the generation of a complex pupil from the combination of the information retrieved from different holographic recordings (one in horizontal and one in vertical direction) where one of the interferometric beams is shifted 1 pixel. As a result, the field of view is tripled since the complex amplitudes of the three interferometric fields involved in the process are retrieved. Proof-of-concept validation of this methodology, named as Cepstrum-based Interferometric Microscopy (CIM), is provided considering an off-axis holographic configuration for retrieving the cross-correlation of the two interferometric complex amplitude fields in a compact quasi-common path Michelson interferometric configuration. Experimental results for different types of phase samples (resolution test targets for step-by-step calibration and demonstration as well as fixed biosamples) are included.

Original languageEnglish
Article number110626
JournalOptics and Laser Technology
Volume174
DOIs
StatePublished - Jul 2024

Bibliographical note

Publisher Copyright:
© 2024 The Author(s)

Funding

This research has been funded by the Grant PID2020‐120056 GB‐C21 funded by MCIN/AEI/ https://doi.org/10.13039/501100011033 . J. A. Picazo-Bueno is supported by the Spanish grant “Margarita Salas” (Ref. MS21-100 ), proposed by the Ministry of Universities of the Government of Spain ( UP2021-044 ).

FundersFunder number
Ministry of Universities of the Government of SpainUP2021-044
Ministerio de Ciencia e Innovación
Agencia Estatal de InvestigaciónMS21-100

    Keywords

    • Cepstrum transform
    • Cepstrum-based interferometric microscopy
    • Digital holographic microscopy
    • Phase retrieval
    • Quantitative phase imaging

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