GaInAsP photonic crystal (PC) point-shift nanolasers operate at room temperature and under pulsed and continuous-wave condition by photopumping, with an effective threshold of ～1 μW, a single mode peak of over 40 dB, and a small modal volume of -0.2 times the cubic wavelength. We report the details of its design, fabrication process, measurement method, and lasing characteristics. In particular, we reveal that wide spectral broadening often observed for nanolasers under pulsed condition is caused by large thermal chirping. Then, we focus on a nanolaser-based liquid index sensor, which is also applicable to detecting gases and bio-molecules. The dependence of the laser's sensitivity and resolution on the modal profile and spectral linewidth are investigated. We also configure the laser in a large-scale array, and demonstrate spectrometer-free sensor system. Finally, we present a nanoslot nanolaser, which is particularly suitable for further reducing the modal volume and enhancing light-matter interaction and sensor performance. Additionally, we demonstrate that high sensitivity and spectral narrowing by the unique optical confinement in the nanoslot gives rise to.
言語
en
bibliographic_information
en : IEEE journal of selected topics in quantum electronics
巻 17,
号 6,
p. 1632-1647,
ページ数 16,
発行日 2011
item_2_source_id_9
収録物識別子タイプ
PISSN
収録物識別子
1077260X
item_2_source_id_11
収録物識別子タイプ
NCID
収録物識別子
AA11036333
item_2_relation_13
関連タイプ
isVersionOf
識別子タイプ
DOI
関連識別子
10.1109/JSTQE.2011.2134837
権利
言語
en
権利情報
(c) 2011 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other users, including reprinting/ republishing this material for advertising or promotional purposes, creating new collective works for resale or redistribution to servers or lists, or reuse of any copyrighted components of this work in other works.)
38.pdf (1.4 MB)
