Title: Tunable nanoblock lasers and stretching sensors
Authors: Lu, T. W.
Wang, C.
Hsiao, C. F.
Lee, P. T.
Department of Photonics
Issue Date: 2016
Abstract: Reconfigurable, reliable, and robust nanolasers with wavelengths tunable in the telecommunication bands are currently being sought after for use as flexible light sources in photonic integrated circuits. Here, we propose and demonstrate tunable nanolasers based on 1D nanoblocks embedded within stretchable polydimethylsiloxane. Our lasers show a large wavelength tunability of 7.65 nm per 1% elongation. Moreover, this tunability is reconfigurable and reliable under repeated stretching/relaxation tests. By applying excessive stretching, wide wavelength tuning over a range of 80 nm (spanning the S, C, and L telecommunication bands) is successfully demonstrated. Furthermore, as a stretching sensor, an enhanced wavelength response to elongation of 9.9 nm per % is obtained via the signal differential from two nanoblock lasers positioned perpendicular to each other. The minimum detectable elongation is as small as 0.056%. Nanoblock lasers can function as reliable tunable light sources in telecommunications and highly sensitive on-chip structural deformation sensors.
URI: http://dx.doi.org/10.1039/c6nr03213c
ISSN: 2040-3364
DOI: 10.1039/c6nr03213c
Volume: 8
Issue: 37
Begin Page: 16769
End Page: 16775
Appears in Collections:Articles