New scalable, etching-based technique for precise tuning of microdisk lasers

https://phys.org/news/2023-09-scalable-etching-based-technique-precise-tuning.html

"photoelectrochemical etching in diluted sulfuric acid... SiO2-capped indium gallium arsenide phosphide microdisks on indium phosphide pillar structures onto polydimethylsiloxane substrate producing laser particles... on-chip photonic communications, on-chip bioimaging, biochemical sensing, quantum photonic information processing, physical optical barcodes for heterogeneous biological samples enabling tagging specific cell types and specific molecules multiplexed assays, flow cytometry, and multi-omics analyses"