Finite-difference time-domain-based optical microscopy simulation of dispersive media facilitates the development of optical imaging techniques

Di Zhang, Ilker Capoglu, Yue Li, Lusik Cherkezyan, John Chandler, Graham Spicer, Hariharan Subramanian, Allen Taflove, Vadim Backman*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

6 Scopus citations

Abstract

Combining finite-difference time-domain (FDTD) methods and modeling of optical microscopy modalities, we previously developed an open-source software package called Angora, which is essentially a "microscope in a computer." However, the samples being simulated were limited to nondispersive media. Since media dispersions are common in biological samples (such as cells with staining and metallic biomarkers), we have further developed a module in Angora to simulate samples having complicated dispersion properties, thereby allowing the synthesis of microscope images of most biological samples. We first describe a method to integrate media dispersion into FDTD, and we validate the corresponding Angora dispersion module by applying Mie theory, as well as by experimentally imaging gold microspheres. Then, we demonstrate how Angora can facilitate the development of optical imaging techniques with a case study.

Original languageEnglish (US)
Article number065004
JournalJournal of Biomedical Optics
Volume21
Issue number6
DOIs
StatePublished - Jun 1 2016

Keywords

  • imaging
  • microscopy
  • simulations
  • spectroscopy

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Biomaterials
  • Atomic and Molecular Physics, and Optics
  • Biomedical Engineering

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