Publication No: 5927Search all ORC publications    

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

Mahesh Krishnamurthi1, Eftihia Barnes1, Justin R. Sparks2, Rongrui He2, Neil F.Baril2, Pier J.A.Sazio3, John V. Badding2, and Venkatraman Gopalan1

1. Department of Material Science and Engineering and Materials Research Institute, Pennsylvania State University, Pennsylvania 16802, USA
2. Department of Chemistry and Materials Research Institute, Pennsylvania State University, Pennsylvania 16802, USA
3. Optoelectronic Research Center, University of Southampton, UK

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 3.39μm and 10.64μm 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.


Applied Physics Letters (2012) Vol.101(2) pp.021108

doi: 10.1063/1.4734787

Southampton ePrint id: 356358

 

 

 

Copyright University of Southampton 2006