Optical microfluidic waveguides and solution lasers of colloidal semiconductor quantum wells

buir.contributor.authorMaskoun, Joudi
buir.contributor.authorGheshlaghi, Negar
buir.contributor.authorIşık, Furkan
buir.contributor.authorSavaş, Delikanlı
buir.contributor.authorOnur, Erdem
buir.contributor.authorEmine Yegan, Erdem
buir.contributor.authorHilmi Volkan, Demir
buir.contributor.orcidMaskoun, Joudi|0000-0002-6575-7704
buir.contributor.orcidIşık, Furkan|0000-0001-5881-5438
buir.contributor.orcidEmine Yegan, Erdem|0000-0001-9852-2293
buir.contributor.orcidHilmi Volkan, Demir|0000-0003-1793-112X
dc.citation.epage2007131-6en_US
dc.citation.issueNumber10en_US
dc.citation.spage2007131-1en_US
dc.citation.volumeNumber33en_US
dc.contributor.authorMaskoun, Joudi
dc.contributor.authorGheshlaghi, Negar
dc.contributor.authorIşık, Furkan
dc.contributor.authorSavaş, Delikanlı
dc.contributor.authorOnur, Erdem
dc.contributor.authorEmine Yegan, Erdem
dc.contributor.authorHilmi Volkan, Demir
dc.date.accessioned2022-02-28T12:18:46Z
dc.date.available2022-02-28T12:18:46Z
dc.date.issued2021-01-25
dc.departmentDepartment of Electrical and Electronics Engineeringen_US
dc.departmentDepartment of Mechanical Engineeringen_US
dc.departmentDepartment of Physicsen_US
dc.departmentInstitute of Materials Science and Nanotechnology (UNAM)en_US
dc.description.abstractThe 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@CdxZn1−xS 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.en_US
dc.description.provenanceSubmitted by Esma Aytürk (esma.babayigit@bilkent.edu.tr) on 2022-02-28T12:18:46Z No. of bitstreams: 1 Optical_Microfluidic_Waveguides_and_Solution_Lasers_of_Colloidal_Semiconductor_Quantum_Wells.pdf: 761208 bytes, checksum: 12b091d9009a6cb3b0d683110cf33082 (MD5)en
dc.description.provenanceMade available in DSpace on 2022-02-28T12:18:46Z (GMT). No. of bitstreams: 1 Optical_Microfluidic_Waveguides_and_Solution_Lasers_of_Colloidal_Semiconductor_Quantum_Wells.pdf: 761208 bytes, checksum: 12b091d9009a6cb3b0d683110cf33082 (MD5) Previous issue date: 2021-01-25en
dc.embargo.release2022-01-25
dc.identifier.doi10.1002/adma.202007131en_US
dc.identifier.eissn1521-4095
dc.identifier.issn0935-9648
dc.identifier.urihttp://hdl.handle.net/11693/77624
dc.language.isoEnglishen_US
dc.publisherWiley-VCH Verlag GmbH & Co. KGaAen_US
dc.relation.isversionofhttps://doi.org/10.1002/adma.202007131en_US
dc.source.titleAdvanced Materialsen_US
dc.titleOptical microfluidic waveguides and solution lasers of colloidal semiconductor quantum wellsen_US
dc.typeArticleen_US

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