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High performance single-photon sources at telecom wavelength based on broadband hybrid circular Bragg gratings
Andrea Barbiero, Jan Huwer, Joanna Skiba-Szymanska +7
Semiconductor quantum dots embedded in hybrid circular Bragg gratings are a promising platform for the efficient generation of nonclassical light. The scalable fabrication of multi…
Active terahertz modulator and slow light metamaterial devices with hybrid graphene-superconductor photonic integrated circuits
Samane Kalhor, Stephan J. Kindness, Robert Wallis +9
Metamaterial photonic integrated circuits with arrays of hybrid graphene-superconductor coupled split-ring resonators (SRR) capable of modulating and slowing down terahertz (THz) l…
Millimeter wave to terahertz compact and low-loss superconducting plasmonic waveguides for cryogenic integrated nano-photonics
S. Kalhor, M. Ghanaatshoar, H. J. Joyce +3
Plasmonic, as a rapidly growing research field, provides new pathways to guide and modulate highly confined light in the microwave to the optical range of frequencies. We demonstra…
Defect Line Terahertz Quantum Cascade Laser
Adam Klimont, Riccardo Degl'Innocenti, Luca Masini +7
We present terahertz quantum cascade lasers operating at a defect mode of a photonic crystal bandgap. This class of devices exhibits single mode emission and low threshold current…
In-plane emission of indistinguishable photons generated by an integrated quantum emitter
Sokratis Kalliakos, Yarden Brody, Andre Schwagmann +9
We demonstrate the emission of indistinguishable photons along a semiconductor chip originating from carrier recombination in an InAs quantum dot. The emitter is integrated in the…
On-chip generation and guiding of quantum light from a site-controlled quantum dot
Ayesha Jamil, Joanna Skiba-Szymanska, Sokratis Kalliakos +9
We demonstrate the emission and routing of single photons along a semiconductor chip originating from carrier recombination in an actively positioned InAs quantum dot. Device scale…
Reversible Mode Switching in Y coupled Terahertz Lasers
Owen P. Marshall, Subhasish Chakraborty, Md Khairuzzaman +2
Electrically independent terahertz (THz) quantum cascade lasers (QCLs) are optically coupled in a Y configuration. Dual frequency, electronically switchable emission is achieved in…
Longitudinal Computer Generated Holograms for Digital Frequency Control in Electronically Tunable Terahertz Lasers
Subhasish Chakraborty, Owen P. Marshall, Md. Khairuzzaman +2
A transverse computer-generated hologram (CGH) diffracts and provides flexible control of incident light by steering it to any point in the projected image plane - i.e. CGHs are ab…