English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

We report on mapping of the local density of states in L3 photonic crystalresonators (PCR) via deterministically positioned single Ge quantum dots (QDs).Perfect site-control of Ge QDs on pre-patterned silicon-on-insulator substrateswas exploited to fabricate in one processing run almost 300 L3 PCRs containingsingle QDs in systematically varying positions in the cavities. The alignmentprecision of the QD emitters was better than 20 nm. This type of parallelprocessing is essentially based on standard Si device technologies and istherefore scalable to any number and configuration of PCR structures. As afirst demonstrator, we probed the coupling efficiency of a single Ge QD to theL3 cavity modes as a function of their spatial overlap. The results are in verygood agreement with finite-difference time-domain simulations.

Local Density-of-States Mapping in Photonic Crystal Resonators by Deterministically Positioned Germanium Quantum Dots