Open AccessSpatially-chirped modulation imaging of absorbtion and fluorescent objects on single-element optical detector
Author(s) -
Gregory L. Futia,
Philip Schlup,
David G. Winters,
Randy A. Bartels
Publication year - 2011
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.19.001626
Subject(s) - optics , photodiode , detector , signal (programming language) , modulation (music) , fluorophore , ghost imaging , materials science , physics , time domain , fluorescence , computer science , acoustics , programming language , computer vision
Line imaging of fluorescent and absorptive objects with a single-pixel imaging technique that acquires one-dimensional cross-sections through a sample by imposing a spatially-varying amplitude modulation on the probing beam is demonstrated. The fluorophore concentration or absorber distribution of the sample is directly mapped to modulation frequency components of the spatially-integrated temporal signal. Time-domain signals are obtained from a single photodiode, with object spatial frequency correlation encoded in time-domain bursts in the electronic signal from the photodiode.