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Ultrasharp ministop-band edge for subnanometer tuning resolution

Shahid, Naeem; Speijcken, N; Naureen, Shagufta; Li, Mingyu; Swillo, Marcin; Anand, S


We propose and demonstrate a method that enables spectral tuning with subnanometer accuracy, and is based on the transmission ministop-band (MSB) in line-defect multimode photonic crystal (PhC) waveguides. The fabricated MSB filter has ultrasharp edges which show a 30 dB drop in transmission in a 4 nm wavelength span. The use of the ultrasharp MSB edge to (optically) determine PhC fabrication accuracy is demonstrated. The wavelength position of the MSB could be tuned by temperature, with a...[Show more]

CollectionsANU Research Publications
Date published: 2011
Type: Journal article
Source: Applied Physics Letters
DOI: 10.1063/1.3559915
Access Rights: Open Access


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