A needle in a needlestack: exploiting functional inhomogeneity for optimized nanowire lasing

Patrick Parkinson, Juan A. Alanis, Stefan Skalsky, Yunyan Zhang, Huiyun Liu, Mykhaylo Lysevych, Hark H. Tan, Chennupati Jagadish, Diana L. Huffaker (Editor), Holger Eisele (Editor)

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

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Abstract

III-V semiconductor nanowires allow easy hetero-integration of optoelectronic components onto silicon due to efficient strain relaxation, well-understood design approaches and scalability. However continuous room temperature lasing has proven elusive. A key challenge is performing repeatable single-wire characterization { each wire can be different due to local growth conditions present during bottom-up growth. Here, we describe an approach using large-scale population studies which exploit inherent inhomogeneity to understand the complex interplay of geometric design, crystal structure, and material quality. By correlating nanowire length with threshold for hundreds of nanowire lasers, this technique reveals core-reabsorption as the critical limiting process in multiple-quantum-well nanowire lasers. By incorporating higher band-gap nanowire core, this effect is eliminated, providing reflectivity dominated behavior.
Original languageEnglish
Title of host publicationProceedings Volume 11291, Quantum Dots, Nanostructures, and Quantum Materials: Growth, Characterization, and Modeling XVII
Pages37
DOIs
Publication statusPublished - 2 Mar 2020
EventQuantum Dots, Nanostructures, and Quantum Materials: Growth, Characterization, and Modeling XVII - San Francisco, United States
Duration: 1 Feb 20206 Feb 2020

Conference

ConferenceQuantum Dots, Nanostructures, and Quantum Materials: Growth, Characterization, and Modeling XVII
Period1/02/206/02/20

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