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- Publisher Website: 10.1063/5.0060830
- Scopus: eid_2-s2.0-85114695815
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Article: Electrically injected whispering-gallery mode InGaN/GaN microdisks
Title | Electrically injected whispering-gallery mode InGaN/GaN microdisks |
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Authors | |
Issue Date | 2021 |
Publisher | AIP Publishing LLC. The Journal's web site is located at http://scitation.aip.org/content/aip/journal/apl |
Citation | Applied Physics Letters, 2021, v. 119 n. 10, p. article no. 101106 How to Cite? |
Abstract | The combination of high-quality factors and small mode volumes in whispering-gallery-mode (WGM) resonators promotes significantly enhanced light-matter interactions, making them excellent cavities for achieving compact semiconductor lasers with low threshold and narrow linewidth. However, success in developing GaN-based WGM lasers has been extremely limited due to the complicated design and fabrication of both high-finesse optical cavities and effective efficient injection schemes. Here, we report on WGM emission from vertical-injection blue-light emitting InGaN/GaN thin-film microdisks achieved by wafer bonding and laser liftoff removal of the sapphire substrate. The observed WGMs, identified as a combination of first order and higher order modes with the aid of finite-difference time-domain simulations, have Q-factors as high as 3700. This work presents a viable approach toward the practical implementation of compact InGaN/GaN microdisk lasers through a simple and scalable process. |
Persistent Identifier | http://hdl.handle.net/10722/304224 |
ISSN | 2023 Impact Factor: 3.5 2023 SCImago Journal Rankings: 0.976 |
ISI Accession Number ID |
DC Field | Value | Language |
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dc.contributor.author | Li, KH | - |
dc.contributor.author | Cheung, YF | - |
dc.contributor.author | Fu, WY | - |
dc.contributor.author | Choi, HW | - |
dc.date.accessioned | 2021-09-23T08:57:00Z | - |
dc.date.available | 2021-09-23T08:57:00Z | - |
dc.date.issued | 2021 | - |
dc.identifier.citation | Applied Physics Letters, 2021, v. 119 n. 10, p. article no. 101106 | - |
dc.identifier.issn | 0003-6951 | - |
dc.identifier.uri | http://hdl.handle.net/10722/304224 | - |
dc.description.abstract | The combination of high-quality factors and small mode volumes in whispering-gallery-mode (WGM) resonators promotes significantly enhanced light-matter interactions, making them excellent cavities for achieving compact semiconductor lasers with low threshold and narrow linewidth. However, success in developing GaN-based WGM lasers has been extremely limited due to the complicated design and fabrication of both high-finesse optical cavities and effective efficient injection schemes. Here, we report on WGM emission from vertical-injection blue-light emitting InGaN/GaN thin-film microdisks achieved by wafer bonding and laser liftoff removal of the sapphire substrate. The observed WGMs, identified as a combination of first order and higher order modes with the aid of finite-difference time-domain simulations, have Q-factors as high as 3700. This work presents a viable approach toward the practical implementation of compact InGaN/GaN microdisk lasers through a simple and scalable process. | - |
dc.language | eng | - |
dc.publisher | AIP Publishing LLC. The Journal's web site is located at http://scitation.aip.org/content/aip/journal/apl | - |
dc.relation.ispartof | Applied Physics Letters | - |
dc.title | Electrically injected whispering-gallery mode InGaN/GaN microdisks | - |
dc.type | Article | - |
dc.identifier.email | Cheung, YF: yukfaira@hku.hk | - |
dc.identifier.email | Fu, WY: wyfu@hku.hk | - |
dc.identifier.email | Choi, HW: hwchoi@hku.hk | - |
dc.identifier.authority | Li, KH=rp02142 | - |
dc.identifier.authority | Fu, WY=rp02840 | - |
dc.identifier.authority | Choi, HW=rp00108 | - |
dc.identifier.doi | 10.1063/5.0060830 | - |
dc.identifier.scopus | eid_2-s2.0-85114695815 | - |
dc.identifier.hkuros | 325405 | - |
dc.identifier.volume | 119 | - |
dc.identifier.issue | 10 | - |
dc.identifier.spage | article no. 101106 | - |
dc.identifier.epage | article no. 101106 | - |
dc.identifier.isi | WOS:000754554900004 | - |
dc.publisher.place | United States | - |