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Optical Engineering

Super defect inside photonic crystal ring resonator to enhance <inline-formula< <mml:math display="inline" xmlns:mml="http://www.w3.org/1998/Math/MathML"< <mml:mrow< <mml:mi<Q</mml:mi< </mml:mrow< </mml:math< </inline-formula< factor
Author(s): Tupakula Sreenivasulu; Venkateswara R. Kolli; Badrinarayana Tarimala; Gopalkrishna Hegde; Mohan Sangineni; Srinivas Talabattula
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Paper Abstract

A design is proposed to enhance the quality factor of a photonic crystal ring resonator. A super defect is employed inside the ring resonator, which consists of variation of hole dimensions inside the ring resonator in such a way that the radiation field components of the resonant nanocavity are forced to get cancelled in order to reduce radiation loss. After this forced cancellation, the improved Q factor is calculated as 18,000. This photonic crystal ring resonator can be used for sensing applications like force sensing, pressure sensing, biochemical sensing, and communication applications like demultiplexing.

Paper Details

Date Published: 18 March 2016
PDF: 4 pages
Opt. Eng. 55(3) 035103 doi: 10.1117/1.OE.55.3.035103
Published in: Optical Engineering Volume 55, Issue 3
Show Author Affiliations
Tupakula Sreenivasulu, Indian Institute of Science (India)
Venkateswara R. Kolli, Indian Institute of Science (India)
Badrinarayana Tarimala, Indian Institute of Science (India)
Gopalkrishna Hegde, Indian Institute of Science (India)
Mohan Sangineni, Indian Institute of Science (India)
Srinivas Talabattula, Indian Institute of Science (India)


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