Mid-infrared spectroscopic imaging enabled by an array of Ge-filled waveguides in a microstructured optical fiber probe

Xiaoyu Ji, Baigang Zhang, Mahesh Krishnamurthi, John V. Badding, Venkatraman Gopalan

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Abstract

We demonstrate mid-infrared spectroscopic imaging using a unique optical fiber probe consisting of an array of Ge waveguide cores embedded in a silica fiber matrix. Biological tissue slices are characterized to illustrate its potential endoscopic uses. The fiber probe based transmission measurements show excellent agreement with the result obtained from standard Fourier Transform Infrared spectroscopy transmission measurements in the wavelength range of 3289.8 nm to 3383.3 nm, where fat and muscle tissues could be spectroscopically distinguished.

Original languageEnglish (US)
Pages (from-to)28459-28466
Number of pages8
JournalOptics Express
Volume22
Issue number23
DOIs
StatePublished - Nov 17 2014

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All Science Journal Classification (ASJC) codes

  • Atomic and Molecular Physics, and Optics

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