Engineering and Technology

Quantum dot lasing from a waterproof and stretchable polymer film

M. Mohammadimasoudi, P. Geiregat, et al.

This groundbreaking research showcases a flexible, free-standing film laser made from a thin film of quantum dots embedded in polymerized chiral liquid crystal, offering stable, narrow-linewidth lasing under water at room temperature. Conducted by Mohammad Mohammadimasoudi and his team, this technology promises exciting applications as a sensitive sensor.

00:00

Playback language: English

Index

Abstract

This work demonstrates a vertical cavity surface emitting laser consisting of a thin film of quantum dots (QDs) embedded between two layers of polymerized chiral liquid crystal. Forward-directed, circularly polarized defect mode lasing is achieved under nanosecond-pulsed excitation. The resulting free-standing, flexible film exhibits stable, long-term narrow-linewidth lasing under water at room temperature, with lasing wavelength sensitive to pressure, strain, and temperature, enabling its use as a sensor.

Publisher

Light: Science & Applications

Published On

Authors

Mohammad Mohammadimasoudi, Pieter Geiregat, Frederik Van Acker, Jeroen Beeckman, Zeger Hens, Tangi Aubert, Kristiaan Neyts

Related Publications

Explore these studies to deepen your understanding of the subject.

Physics

Oscillating photonic Bell state from a semiconductor quantum dot for quantum key distribution

M. Pennacchietti, B. Cunard, et al.

Physics

Topological order from measurements and feed-forward on a trapped ion quantum computer

M. Iqbal, N. Tantivasadakarn, et al.

Chemistry

Hierarchical single-crystal-to-single-crystal transformations of a monomer to a 1D-polymer and then to a 2D-polymer

H. Balan and K. M. Sureshan

Medicine and Health

Social, Ethical and Treatment Related Problems Faced by Healthcare Workers in the Care of Head and Neck Cancer Patients: A Narrative Review from the Bioethics Consortium from India

M. S. Baliga, S. Lasrado, et al.

Listen, Learn & Level Up

Over 10,000 hours of research content in 25+ fields, available in 12+ languages.

No more digging through PDFs, just hit play and absorb the world's latest research in your language, on your time.

listen to research audio papers with researchbunny