Room-Temperature Low-Threshold Lasing from Monolithically Integrated Nanostructured Porous Silicon Hybrid Microcavities

Valentina Robbiano, Giuseppe M. Paternò, Antonino A. La Mattina, Silvia G. Motti, Guglielmo Lanzani, Francesco Scotognella, Giuseppe Barillaro
  • ACS Nano, May 2018, American Chemical Society (ACS)
  • DOI: 10.1021/acsnano.8b00875

New strategy for low-cost and stable laser sources

What is it about?

We fabricated a microcavity based on porous silicon to provide optical feedback and lasing. We firstly fabricated the structure via simple electrochemical etching of a silicon wafer. Then we exploited the intrinsic porosity of the structure to infiltrate a well-known polyfluorene emitter that exhibits optical gain. The resulting device supports single mode lasing with a relatively low-threshold.

Why is it important?

silicon photonics photonic communication photonics integrated circuit


Dr Giuseppe Maria Paternò (Author)
Istituto Italiano di Tecnologia - Center for Nanoscience and Technology

This is the first example of a porous silicon structure supporting lasing action.

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The following have contributed to this page: Dr Giuseppe Maria Paternò