Abstract
We report the experimental demonstration of an optically pumped rod-type photonic-crystal band-edge laser. The structure consists of a 20 × 20 square lattice array of InGaAsP iron-nail-shaped rods. A single-mode lasing action is observed with a low threshold of ∼90 μW and a peak wavelength of 1451.5 nm at room temperature. Measurements of the polarization-resolved mode images and lasing wavelengths agree well with numerical simulations, which confirm that the observed lasing mode originates from the first Γ-point transverse-electric-like band-edge mode. We believe that this low-threshold band-edge laser will be useful for the practical implementation of nanolasers.
Original language | English |
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Article number | 091120 |
Journal | Applied Physics Letters |
Volume | 104 |
Issue number | 9 |
DOIs | |
Publication status | Published - 2014 Mar 3 |
ASJC Scopus subject areas
- Physics and Astronomy (miscellaneous)