Coarse and fine-tuning of lasing transverse electromagnetic modes in coupled all-inorganic perovskite quantum dots
Inorganic perovskite lasers are of particular interest, with much recent work focusing on Fabry-Pérot cavity-forming nanowires. We demonstrate the direct observation of lasing from transverse electromagnetic (TEM) modes with a long coherence time ∼ 9.5 ps in coupled CsPbBr3 quantum dots, which dispe...
| Main Authors: | , , , , , , , |
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| Format: | Journal article |
| Language: | English |
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Springer
2020
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| _version_ | 1826261240757878784 |
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| author | Park, Y Ying, G Jana, A Osokin, V Kocher, CC Farrow, T Taylor, RA Kim, KS |
| author_facet | Park, Y Ying, G Jana, A Osokin, V Kocher, CC Farrow, T Taylor, RA Kim, KS |
| author_sort | Park, Y |
| collection | OXFORD |
| description | Inorganic perovskite lasers are of particular interest, with much recent work focusing on Fabry-Pérot cavity-forming nanowires. We demonstrate the direct observation of lasing from transverse electromagnetic (TEM) modes with a long coherence time ∼ 9.5 ps in coupled CsPbBr3 quantum dots, which dispense with an external cavity resonator and show how the wavelength of the modes can be controlled via two independent tuning-mechanisms. Controlling the pump power allowed us to fine-tune the TEM mode structure to the emission wavelength, thus providing a degree of control over the properties of the lasing signal. The temperature-tuning provided an additional degree of control over the wavelength of the lasing peak, importantly, maintained a constant full width at half maximum (FWHM) over the entire tuning range without mode-hopping. |
| first_indexed | 2024-03-06T19:18:24Z |
| format | Journal article |
| id | oxford-uuid:19381ac9-d69d-4afa-826a-a84436f9d1be |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-06T19:18:24Z |
| publishDate | 2020 |
| publisher | Springer |
| record_format | dspace |
| spelling | oxford-uuid:19381ac9-d69d-4afa-826a-a84436f9d1be2022-03-26T10:47:50ZCoarse and fine-tuning of lasing transverse electromagnetic modes in coupled all-inorganic perovskite quantum dotsJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:19381ac9-d69d-4afa-826a-a84436f9d1beEnglishSymplectic ElementsSpringer2020Park, YYing, GJana, AOsokin, VKocher, CCFarrow, TTaylor, RAKim, KSInorganic perovskite lasers are of particular interest, with much recent work focusing on Fabry-Pérot cavity-forming nanowires. We demonstrate the direct observation of lasing from transverse electromagnetic (TEM) modes with a long coherence time ∼ 9.5 ps in coupled CsPbBr3 quantum dots, which dispense with an external cavity resonator and show how the wavelength of the modes can be controlled via two independent tuning-mechanisms. Controlling the pump power allowed us to fine-tune the TEM mode structure to the emission wavelength, thus providing a degree of control over the properties of the lasing signal. The temperature-tuning provided an additional degree of control over the wavelength of the lasing peak, importantly, maintained a constant full width at half maximum (FWHM) over the entire tuning range without mode-hopping. |
| spellingShingle | Park, Y Ying, G Jana, A Osokin, V Kocher, CC Farrow, T Taylor, RA Kim, KS Coarse and fine-tuning of lasing transverse electromagnetic modes in coupled all-inorganic perovskite quantum dots |
| title | Coarse and fine-tuning of lasing transverse electromagnetic modes in coupled all-inorganic perovskite quantum dots |
| title_full | Coarse and fine-tuning of lasing transverse electromagnetic modes in coupled all-inorganic perovskite quantum dots |
| title_fullStr | Coarse and fine-tuning of lasing transverse electromagnetic modes in coupled all-inorganic perovskite quantum dots |
| title_full_unstemmed | Coarse and fine-tuning of lasing transverse electromagnetic modes in coupled all-inorganic perovskite quantum dots |
| title_short | Coarse and fine-tuning of lasing transverse electromagnetic modes in coupled all-inorganic perovskite quantum dots |
| title_sort | coarse and fine tuning of lasing transverse electromagnetic modes in coupled all inorganic perovskite quantum dots |
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