A magnifying fiber element with an array of sub-wavelength Ge/ZnSe pixel waveguides for infrared imaging

Mahesh Krishnamurthi, Eftihia Barnes, Justin R. Sparks, Rongrui He, Neil F. Baril, Pier J.A. Sazio, John V. Badding, Venkatraman Gopalan

Research output: Contribution to journalArticlepeer-review

4 Scopus citations

Abstract

We demonstrate an array of tapered Ge-core/ZnSe-cladding waveguides in a silica fiber matrix for infrared image transfer and a pixel magnification of 3.5× at 3.39 μm and 10.64 μm wavelengths. The structure was synthesized by a high-pressure chemical vapor deposition technique to deposit the semiconductor waveguides within the holes of a silica based microstructured optical fiber. The core/cladding structure reduces the optical propagation loss through the waveguides, and good isolation between the pixels is demonstrated. With further material improvements, these structures could be useful for applications such as infrared endoscopic imaging.

Original languageEnglish (US)
Article number021108
JournalApplied Physics Letters
Volume101
Issue number2
DOIs
StatePublished - Jul 9 2012

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy (miscellaneous)

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