Special Section on Metamaterials and Photonic Nanostructures

Photonic crystal-based polarization selector for planar architectures

[+] Author Affiliations
Richa Goel

Tata Institute of Fundamental Research, Department of Condensed Matter Physics and Material Science, Homi Bhabha Road, Mumbai 400 005, India

Indian Institute of Technology Bombay, Department of Electrical Engineering and Centre for Excellence in Nanoelectronics, Mumbai 400076, India

Ashwin Tulapurkar

Indian Institute of Technology Bombay, Department of Electrical Engineering and Centre for Excellence in Nanoelectronics, Mumbai 400076, India

Achanta Venu Gopal

Tata Institute of Fundamental Research, Department of Condensed Matter Physics and Material Science, Homi Bhabha Road, Mumbai 400 005, India

J. Nanophoton. 8(1), 083891 (Feb 05, 2014). doi:10.1117/1.JNP.8.083891
History: Received September 24, 2013; Revised December 31, 2013; Accepted January 2, 2014
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Abstract.  Polarization selectors, especially, those involving quantum dots (QDs) in photonic crystals (PCs) are interesting as they offer scalability for planar architectures. Three-dimensional finite difference time domain simulations were used to design PC structures suitable for polarization-selective transmission of QD emission into different regions as well as polarization beam splitters with different splitting ratios. Different waveguide out couplers were also designed for these coupled waveguide PC structures. As the transmitted intensity is the net result of superposition of all scattered beams, QD position defines the coupling efficiency to different paths. A detailed study showed that the transmission efficiency has intermediate maxima when the QD is shifted in either x- or z-directions.

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© 2014 Society of Photo-Optical Instrumentation Engineers

Citation

Richa Goel ; Ashwin Tulapurkar and Achanta Venu Gopal
"Photonic crystal-based polarization selector for planar architectures", J. Nanophoton. 8(1), 083891 (Feb 05, 2014). ; http://dx.doi.org/10.1117/1.JNP.8.083891


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