The photonic crystal platform provides an interesting and promising platform for realizing ultra-compact lasers. While the initial experimental efforts in NATEC were mainly on slow-light amplifiers and switches, we have gradually been focusing more on lasers. Also, we have had a significant effort on on deriving, from first principles, the rate equations used to model such lasers and on understanding bandwidth limitations in lasers exploiting Purcell enhancement effects.
(a) SEM image of an InGaAsP PhC membrane laser sample investigated. (b) 3D finite element thermal simulation for CW optically-pumped cleaved (cantilevertype) PhC
We work on the following topics:
- Lasing in optically pumped line-defect lasers
- Micropillar lasers exploiting adiabatic layer design
- Electrically injected photonic crystal lasers
- Modulation speed of photonic crystal lasers and LEDs
- Proposal of an ultrafast Fano laser
- Dynamics of few-emitter lasers
- Laser emission mediated by non-resonant coupling
- Mode-locked photonic crystal laser
Relevant NATEC papers:
T. Suhr, N. Gregersen, K. Yvind, and J. Mørk, “Modulation response of nanoleds and nanolasers exploiting purcell enhanced spontaneous emission”, Opt. Express 18, 11230–11241 (2010).
N. Gregersen, T. R. Nielsen, J. Mork, J. Claudon, and J.-M. Gérard, “Designs for high-efficiency electrically pumped photonic nanowire single-photon sources.”, Opt. Express 18, 21204–18 (2010).
M. Heuck, S. Blaaberg, and J. Mørk, “Theory of passively mode-locked photonic crystal semiconductor lasers”, Opt. Express 18, 18003–18014 (2010).
C. Agger, T. S. Skovgård, N. Gregersen, and J. Mork, “Modeling of modelocked coupled-resonator optical waveguide lasers”, IEEE J. Quantum Electron. 46, 1804–1812 (2010).
J. Grgic, E. Campaioli, S. Raza, P. Bassi, and N. A. Mortensen, “Coupledresonator optical waveguides: Q-factor and disorder influence”, Opt. Quantum Electron. 42, 511–519 (2010).
T. Suhr, N. Gregersen, M. Lorke, and J. Mørk, “Modulation response of quantum dot nanolight-emitting-diodes exploiting purcell-enhanced spontaneous emission”, Appl. Phys. Lett. 98, 211109 (2011).
M. Munsch, J. Claudon, J. Bleuse, N. Malik, E. Dupuy, J.-M. Gérard, Y. Chen, N. Gregersen, and J. Mørk, “Linearly Polarized, Single-Mode Spontaneous Emission in a Photonic Nanowire”, Phys. Rev. Lett. 108, 1–5 (2012).
N. Gregersen, T. Suhr, M. Lorke, and J. MpQrk, “Quantum-dot nanocavity lasers with purcell-enhanced stimulated emission”, Applied Physics Letters 100, 131107, pages (2012).
M. Lermer, N. Gregersen, F. Dunzer, S. Reitzenstein, S. Höfling, J. Mork, L. Worschech, and A. Kamp, M.and Forchel, “Bloch-Wave Engineering of Quantum Dot Micropillars for Cavity Quantum Electrodynamics Experiments”, Phys. Rev. Lett. 108, pages (2012).
N. Gregersen, T. Suhr, M. Lorke, and J. Mørk, “Quantum-dot nano-cavity lasers with Purcell-enhanced stimulated emission”, Appl. Phys. Lett. 100, 131107 (2012).
M. Lermer, N. Gregersen, M. Lorke, E. Schild, P. Gold, J. Mork, C. Schneider, A. Forchel, S. Reitzenstein, S. Höfling, and M. Kamp, “High beta lasing in micropillar cavities with adiabatic layer design”, Appl. Phys. Lett. 102, pages (2013).
M. Lorke, T. Suhr, N. Gregersen, and J. Mørk, “Theory of nanolaser devices: Rate equation analysis versus microscopic theory”, Phys. Rev. B 87, 205310 (2013).
A. Moelbjerg, P. Kaer, M. Lorke, B. Tromborg, and J. Mørk, “Dynamical properties of nanolasers based on few discrete emitters”, IEEE Journal of Quantum Electronics 49 (2013).
M. Settnes, P. Kaer, A. Moelbjerg, and J. Mørk, “Auger processes mediating the nonresonant optical emission from a semiconductor quantum dot embedded inside an optical cavity”, Phys. Rev. Lett. 111, 067403 (2013).
J. Liu, S. Ates, M. Lorke, J. Mørk, P. Lodahl, and S. Stobbe, “A comparison between experiment and theory on few-quantum-dot nanolasing in a photonic-crystal cavity”, Opt. Express 21, 28507–28512 (2013).
A. Lupi, I.-S. Chung, and K. Yvind, “Electrical Injection Schemes for Nanolasers”, IEEE Photonics Technol. Lett. 26, 330–333 (2014).