6533b7d2fe1ef96bd125eb4e

RESEARCH PRODUCT

Different strategies towards the deterministic coupling of a single Quantum Dot to a photonic crystal cavity mode

Jesús HerranzJosé María RipaldaBenito AlénLukasz Jakub WewiorLuisa GonzálezJosep Canet-ferrerPablo Aitor PostigoGuillermo Muñoz-matutanoYolanda GonzálezM. KaldirimFernando BrionesJuan P. Martínez-pastorAlfonso G. TaboadaLe. Munioz-camuniezIván PrietoDavid Fuster

subject

Materials sciencebusiness.industryCavity quantum electrodynamicsNucleationGallium arsenidechemistry.chemical_compoundchemistryQuantum dotOptoelectronicsPhotonicsbusinessMolecular beamMolecular beam epitaxyPhotonic crystal

description

In this work we show two different procedures of fabrication aiming towards the systematic positioning of single InAs quantum dots (QDs) coupled to a GaAs photonic crystal (PC) microcavity. The two approaches are based on the molecular beam epitaxial (MBE) growth of site-controlled QDs (SCQDs) on pre-patterned structures. The PC microcavity (PCM) is introduced previous or after the growth, on each case. We demonstrate the InAs SCQD nucleation on pre-patterned PCMs and a method to perform the QD nucleation respect to an etched ruler that is used to position the PC structure after growth. For both types of structures, we have carried out microphotoluminescence (µPL) spectroscopy experiments at 80 K and 4 K.

https://doi.org/10.1109/icton.2011.5970888