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Lasing in optimized two-dimensional iron-nail-shaped rod photonic crystals
- Source :
- AIP Advances, Vol 6, Iss 3, Pp 035026-035026-6 (2016)
- Publication Year :
- 2016
- Publisher :
- AIP Publishing LLC, 2016.
-
Abstract
- We demonstrated lasing at the Γ-point band-edge (BE) modes in optimized two-dimensional iron-nail-shaped rod photonic crystals by optical pulse pumping at room temperature. As the radius of the rod increased quadratically toward the edge of the pattern, the quality factor of the Γ-point BE mode increased up to three times, and the modal volume decreased to 56% compared with the values of the original Γ-point BE mode because of the reduction of the optical loss in the horizontal direction. Single-mode lasing from an optimized iron-nail-shaped rod array with an InGaAsP multiple quantum well embedded in the nail heads was observed at a low threshold pump power of 160 μW. Real-image-based numerical simulations showed that the lasing actions originated from the optimized Γ-point BE mode and agreed well with the measurement results, including the lasing polarization, wavelength, and near-field image.
Details
- Language :
- English
- ISSN :
- 21583226
- Volume :
- 6
- Issue :
- 3
- Database :
- Directory of Open Access Journals
- Journal :
- AIP Advances
- Publication Type :
- Academic Journal
- Accession number :
- edsdoj.5e23607fcf4810a022a22a225e56f4
- Document Type :
- article
- Full Text :
- https://doi.org/10.1063/1.4945437