Self-resonant microlasers of colloidal quantum wells constructed by direct deep patterning
Here, the first account of self-resonant fully colloidal μ-lasers made from colloidal quantum well (CQW) solution is reported. A deep patterning technique is developed to fabricate well-defined high aspect-ratio on-chip CQW resonators made of grating waveguides and in-plane reflectors. The fabricate...
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| 格式: | Journal Article |
| 语言: | English |
| 出版: |
2021
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| 在线阅读: | https://hdl.handle.net/10356/152582 |
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| author | Gheshlaghi, Negar Foroutan-Barenji, Sina Erdem, Onur Altintas, Yemliha Shabani, Farzan Muhammad Hamza Humayun Demir, Hilmi Volkan |
| author2 | School of Electrical and Electronic Engineering |
| author_facet | School of Electrical and Electronic Engineering Gheshlaghi, Negar Foroutan-Barenji, Sina Erdem, Onur Altintas, Yemliha Shabani, Farzan Muhammad Hamza Humayun Demir, Hilmi Volkan |
| author_sort | Gheshlaghi, Negar |
| collection | NTU |
| description | Here, the first account of self-resonant fully colloidal μ-lasers made from colloidal quantum well (CQW) solution is reported. A deep patterning technique is developed to fabricate well-defined high aspect-ratio on-chip CQW resonators made of grating waveguides and in-plane reflectors. The fabricated waveguide-coupled laser, enabling tight optical confinement, assures in-plane lasing. CQWs of the patterned layers are closed-packed with sharp edges and residual-free lifted-off surfaces. Additionally, the method is successfully applied to various nanoparticles including colloidal quantum dots and metal nanoparticles. It is observed that the patterning process does not affect the nanocrystals (NCs) immobilized in the attained patterns and the different physical and chemical properties of the NCs remain pristine. Thanks to the deep patterning capability of the proposed method, patterns of NCs with subwavelength lateral feature sizes and micron-scale heights can possibly be fabricated in high aspect ratios. |
| first_indexed | 2024-10-01T07:21:08Z |
| format | Journal Article |
| id | ntu-10356/152582 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T07:21:08Z |
| publishDate | 2021 |
| record_format | dspace |
| spelling | ntu-10356/1525822023-02-28T19:57:59Z Self-resonant microlasers of colloidal quantum wells constructed by direct deep patterning Gheshlaghi, Negar Foroutan-Barenji, Sina Erdem, Onur Altintas, Yemliha Shabani, Farzan Muhammad Hamza Humayun Demir, Hilmi Volkan School of Electrical and Electronic Engineering School of Physical and Mathematical Sciences Bilkent Universit, Turkey LUMINOUS! Centre of Excellence for Semiconductor Lighting & Displays Centre for Optical Fibre Technology The Photonics Institute Science::Physics Engineering::Electrical and electronic engineering Semiconductor Nanocrystals Direct Nanopatterning Here, the first account of self-resonant fully colloidal μ-lasers made from colloidal quantum well (CQW) solution is reported. A deep patterning technique is developed to fabricate well-defined high aspect-ratio on-chip CQW resonators made of grating waveguides and in-plane reflectors. The fabricated waveguide-coupled laser, enabling tight optical confinement, assures in-plane lasing. CQWs of the patterned layers are closed-packed with sharp edges and residual-free lifted-off surfaces. Additionally, the method is successfully applied to various nanoparticles including colloidal quantum dots and metal nanoparticles. It is observed that the patterning process does not affect the nanocrystals (NCs) immobilized in the attained patterns and the different physical and chemical properties of the NCs remain pristine. Thanks to the deep patterning capability of the proposed method, patterns of NCs with subwavelength lateral feature sizes and micron-scale heights can possibly be fabricated in high aspect ratios. Agency for Science, Technology and Research (A*STAR) National Research Foundation (NRF) Accepted version This research was supported in part by the National Research Foundation, Prime Minister’s Office, Singapore, under its Investigatorship Program (NRF-NRFI2016-08) and the Singapore Agency for Science, Technology and Research (A*STAR) SERC Pharos Program under Grant 152 73 00025. The authors also acknowledge financial support from TÜ BITAK through 115E679, 115F297, and 117E713 ̇ programs. O.E. acknowledges TÜ BITAK for ̇ financial support through the BIDEB-2211 program. H.V.D. gratefully acknowledges TÜ BA. 2021-09-03T00:24:50Z 2021-09-03T00:24:50Z 2021 Journal Article Gheshlaghi, N., Foroutan-Barenji, S., Erdem, O., Altintas, Y., Shabani, F., Muhammad Hamza Humayun & Demir, H. V. (2021). Self-resonant microlasers of colloidal quantum wells constructed by direct deep patterning. Nano Letters, 21(11), 4598-4605. https://dx.doi.org/10.1021/acs.nanolett.1c00464 1530-6984 https://hdl.handle.net/10356/152582 10.1021/acs.nanolett.1c00464 34028277 2-s2.0-85108021361 11 21 4598 4605 en NRF-NRFI2016-08 152 73 00025 Nano Letters This document is the Accepted Manuscript version of a Published Work that appeared in final form in Nano Letters, copyright © American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see https://doi.org/10.1021/acs.nanolett.1c00464. application/pdf |
| spellingShingle | Science::Physics Engineering::Electrical and electronic engineering Semiconductor Nanocrystals Direct Nanopatterning Gheshlaghi, Negar Foroutan-Barenji, Sina Erdem, Onur Altintas, Yemliha Shabani, Farzan Muhammad Hamza Humayun Demir, Hilmi Volkan Self-resonant microlasers of colloidal quantum wells constructed by direct deep patterning |
| title | Self-resonant microlasers of colloidal quantum wells constructed by direct deep patterning |
| title_full | Self-resonant microlasers of colloidal quantum wells constructed by direct deep patterning |
| title_fullStr | Self-resonant microlasers of colloidal quantum wells constructed by direct deep patterning |
| title_full_unstemmed | Self-resonant microlasers of colloidal quantum wells constructed by direct deep patterning |
| title_short | Self-resonant microlasers of colloidal quantum wells constructed by direct deep patterning |
| title_sort | self resonant microlasers of colloidal quantum wells constructed by direct deep patterning |
| topic | Science::Physics Engineering::Electrical and electronic engineering Semiconductor Nanocrystals Direct Nanopatterning |
| url | https://hdl.handle.net/10356/152582 |
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