Wednesday, January 22, 2025

The first colloidal quantum dot (CQD)-based laser

Extending SWIR applications.

ICFO researchers created a new laser using colloidal quantum dots. Their laser produces coherent light in the extended SWIR (short-wave infrared) range, using large lead sulfide (PbS) quantum dots.

This innovative technology with CQDs solves important problems, while still being compatible with silicon CMOS platforms—the same technology used to make computer chips. This makes it easier to integrate the new lasers into existing systems.

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a modern technology device

Recovering gold from e-waste

Turning e-waste into gold.
Technology
Illustration of the atomic arrangement within a single lanthanide-doped nanocrystal. Each lanthanide ion can emit light

New nanoscale force sensors made from luminescent nanocrystals

A tour de force.