典型文献
Quantum dot lasing from a waterproof and stretchable polymer film
文献摘要：
Colloidal quantum dots(QDs)are excellent optical gain materials that combine high material gain,a strong absorption of pump light,stability under strong light exposure and a suitability for solution-based processing.The integration of QDs in laser cavities that fully exploit the potential of these emerging optical materials remains,however,a challenge.In this work,we report on a vertical cavity surface emitting laser,which consists of a thin film of QDs embedded between two layers of polymerized chiral liquid crystal.Forward directed,circularly polarized defect mode lasing under nanosecond-pulsed excitation is demonstrated within the photonic band gap of the chiral liquid crystal.Stable and long-term narrow-linewidth lasing of an exfoliated free-standing,flexible film under water is obtained at room temperature.Moreover,we show that the lasing wavelength of this flexible cavity shifts under influence of pressure,strain or temperature.As such,the combination of solution processable and stable inorganic QDs with high chiral liquid crystal reflectivity and effective polymer encapsulation leads to a flexible device with long operational lifetime,that can be immersed in different protic solvents to act as a sensor.
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作者姓名：
Mohammad Mohammadimasoudi;Pieter Geiregat;Frederik Van Acker;Jeroen Beeckman;Zeger Hens;Tangi Aubert;Kristiaan Neyts
作者机构：
Nano-Bio-Photonics Lab,Faculty of New Sciences and Technologies,University of Tehran,Tehran,Iran;Liquid Crystals and Photonics Group,ELIS Department,Ghent University,Technologiepark-Zwijnaarde 126,9052 Zwijnaarde,Belgium;Physics and Chemistry of Nanostructures,Department of Chemistry,Ghent University,Ghent,Belgium;Center for Nano-and Biophotonics(NB-Photonics),Ghent University,Technologiepark-Zwijnaarde 126,9052 Zwijnaarde,Belgium
文献出处：
引用格式：
[1]Mohammad Mohammadimasoudi;Pieter Geiregat;Frederik Van Acker;Jeroen Beeckman;Zeger Hens;Tangi Aubert;Kristiaan Neyts-.Quantum dot lasing from a waterproof and stretchable polymer film)[J].光：科学与应用（英文版）,2022(10):2435-2443
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0.654719
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