Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/150588
Title: Optical microfluidic waveguides and solution lasers of colloidal semiconductor quantum wells
Authors: Maskoun, Joudi
Gheshlaghi, Negar
Isik, Furkan
Delikanli, Savas
Erdem, Onur
Erdem, Emine Yegan
Demir, Hilmi Volkan
Keywords: Science::Physics
Issue Date: 2021
Source: Maskoun, J., Gheshlaghi, N., Isik, F., Delikanli, S., Erdem, O., Erdem, E. Y. & Demir, H. V. (2021). Optical microfluidic waveguides and solution lasers of colloidal semiconductor quantum wells. Advanced Materials, 33(10), e2007131-. https://dx.doi.org/10.1002/adma.202007131
Journal: Advanced Materials 
Abstract: The realization of high-quality lasers in microfluidic devices is crucial for numerous applications, including biological and chemical sensors and flow cytometry, and the development of advanced lab-on-chip (LOC) devices. Herein, an ultralow-threshold microfluidic single-mode laser is proposed and demonstrated using an on-chip cavity. CdSe/CdS@Cdx Zn1-x S core/crown@gradient-alloyed shell colloidal semiconductor quantum wells (CQWs) dispersed in toluene are employed in the cavity created inside a poly(dimethylsiloxane) (PDMS) microfluidic device using SiO2 -protected Ag mirrors to achieve in-solution lasing. Lasing from such a microfluidic device having CQWs solution as a microfluidic gain medium is shown for the first time with a record-low optical gain threshold of 17.1 µJ cm- ² and lasing threshold of 68.4 µJ cm- ² among all solution-based lasing demonstrations. In addition, air-stable SiO2 protected Ag films are used and designed to form highly tunable and reflective mirrors required to attain a high-quality Fabry-Pérot cavity. These realized record-low thresholds emanate from the high-quality on-chip cavity together with the core/crown@gradient-alloyed shell CQWs having giant gain cross-section and slow Auger rates. This microfabricated CQW laser provides a compact and inexpensive coherent light source for microfluidics and integrated optics covering the visible spectral region.
URI: https://hdl.handle.net/10356/150588
ISSN: 1521-4095
DOI: 10.1002/adma.202007131
Schools: School of Electrical and Electronic Engineering 
Rights: This is the peer reviewed version of the following article: Maskoun, J., Gheshlaghi, N., Isik, F., Delikanli, S., Erdem, O., Erdem, E. Y. & Demir, H. V. (2021). Optical microfluidic waveguides and solution lasers of colloidal semiconductor quantum wells. Advanced Materials, 33(10), e2007131-. https://dx.doi.org/10.1002/adma.202007131, which has been published in final form at https://doi.org/10.1002/adma.202007131. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions.
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:EEE Journal Articles

Files in This Item:
File Description SizeFormat 
adma.202007131_NTU.pdf692.38 kBAdobe PDFThumbnail
View/Open

SCOPUSTM   
Citations 20

20
Updated on Mar 23, 2024

Web of ScienceTM
Citations 20

18
Updated on Oct 28, 2023

Page view(s)

259
Updated on Mar 28, 2024

Download(s)

27
Updated on Mar 28, 2024

Google ScholarTM

Check

Altmetric


Plumx

Items in DR-NTU are protected by copyright, with all rights reserved, unless otherwise indicated.