title: Phase-shifting by means of an electronically tunable lens: quantitative phase imaging of biological specimens with digital holographic microscopy.
abstract: The use of an electronically tunable lens (ETL) to produce controlled phase shifts in interferometric arrangements is shown. The performance of the ETL as a phase-shifting device is experimentally validated in phase-shifting digital holographic microscopy. Quantitative phase maps of a section of the thorax of a Drosophila melanogaster fly and of human red blood cells have been obtained using our proposal. The experimental results validate the possibility of using the ETL as a reliable phase-shifter device.
authors.forename: Carlos
authors.initials: C
authors.lastname: Trujillo
authors.forename: Ana
authors.initials: A
authors.lastname: Doblas
authors.forename: Genaro
authors.initials: G
authors.lastname: Saavedra
authors.forename: Manuel
authors.initials: M
authors.lastname: Martínez-Corral
authors.forename: Jorge
authors.initials: J
authors.lastname: García-Sucerquia
mesh_terms: D000818:Animals; D004331:Drosophila melanogaster; D004912:Erythrocytes; D006696:Holography; D006801:Humans; D007090:Image Interpretation, Computer-Assisted