Magnetic‐Field‐Switchable Laser via Optical Pumping of Rubrene
Volumetric optical imaging of magnetic fields is challenging with existing magneto-optical materials, motivating the search for dyes with strong magnetic field interactions, distinct emission spectra, and an ability to withstand high photon flux and incorporation within samples. Here, the magnetic f...
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Wiley
2022
|
| Online Access: | https://hdl.handle.net/1721.1/140301 |
| _version_ | 1826199527137214464 |
|---|---|
| author | Perkinson, Collin F Einzinger, Markus Finley, Joseph Bawendi, Moungi G Baldo, Marc A |
| author_facet | Perkinson, Collin F Einzinger, Markus Finley, Joseph Bawendi, Moungi G Baldo, Marc A |
| author_sort | Perkinson, Collin F |
| collection | MIT |
| description | Volumetric optical imaging of magnetic fields is challenging with existing magneto-optical materials, motivating the search for dyes with strong magnetic field interactions, distinct emission spectra, and an ability to withstand high photon flux and incorporation within samples. Here, the magnetic field effect on singlet-exciton fission is exploited to demonstrate spatial imaging of magnetic fields in a thin film of rubrene. Doping rubrene with the high-quantum yield dye dibenzotetraphenylperiflanthene (DBP) is shown to enable optically pumped, slab waveguide lasing. This laser is magnetic-field-switchable: when operated just below the lasing threshold, application of a 0.4 T magnetic field switches the device between nonlasing and lasing modes, accompanied by an intensity modulation of +360%. This is thought to be the first demonstration of a magnetically switchable laser, as well as the largest magnetically induced change in emission brightness in a singlet-fission material to date. These results demonstrate that singlet-fission materials are promising materials for magnetic sensing applications and could inspire a new class of magneto-optical modulators. |
| first_indexed | 2024-09-23T11:21:46Z |
| format | Article |
| id | mit-1721.1/140301 |
| institution | Massachusetts Institute of Technology |
| language | English |
| last_indexed | 2024-09-23T11:21:46Z |
| publishDate | 2022 |
| publisher | Wiley |
| record_format | dspace |
| spelling | mit-1721.1/1403012022-02-12T03:26:06Z Magnetic‐Field‐Switchable Laser via Optical Pumping of Rubrene Perkinson, Collin F Einzinger, Markus Finley, Joseph Bawendi, Moungi G Baldo, Marc A Volumetric optical imaging of magnetic fields is challenging with existing magneto-optical materials, motivating the search for dyes with strong magnetic field interactions, distinct emission spectra, and an ability to withstand high photon flux and incorporation within samples. Here, the magnetic field effect on singlet-exciton fission is exploited to demonstrate spatial imaging of magnetic fields in a thin film of rubrene. Doping rubrene with the high-quantum yield dye dibenzotetraphenylperiflanthene (DBP) is shown to enable optically pumped, slab waveguide lasing. This laser is magnetic-field-switchable: when operated just below the lasing threshold, application of a 0.4 T magnetic field switches the device between nonlasing and lasing modes, accompanied by an intensity modulation of +360%. This is thought to be the first demonstration of a magnetically switchable laser, as well as the largest magnetically induced change in emission brightness in a singlet-fission material to date. These results demonstrate that singlet-fission materials are promising materials for magnetic sensing applications and could inspire a new class of magneto-optical modulators. 2022-02-11T19:44:06Z 2022-02-11T19:44:06Z 2022-01 2022-02-11T19:40:26Z Article http://purl.org/eprint/type/JournalArticle https://hdl.handle.net/1721.1/140301 Perkinson, Collin F, Einzinger, Markus, Finley, Joseph, Bawendi, Moungi G and Baldo, Marc A. 2022. "Magnetic‐Field‐Switchable Laser via Optical Pumping of Rubrene." Advanced Materials, 34 (4). en 10.1002/adma.202103870 Advanced Materials Creative Commons Attribution 4.0 International license https://creativecommons.org/licenses/by/4.0/ application/pdf Wiley Wiley |
| spellingShingle | Perkinson, Collin F Einzinger, Markus Finley, Joseph Bawendi, Moungi G Baldo, Marc A Magnetic‐Field‐Switchable Laser via Optical Pumping of Rubrene |
| title | Magnetic‐Field‐Switchable Laser via Optical Pumping of Rubrene |
| title_full | Magnetic‐Field‐Switchable Laser via Optical Pumping of Rubrene |
| title_fullStr | Magnetic‐Field‐Switchable Laser via Optical Pumping of Rubrene |
| title_full_unstemmed | Magnetic‐Field‐Switchable Laser via Optical Pumping of Rubrene |
| title_short | Magnetic‐Field‐Switchable Laser via Optical Pumping of Rubrene |
| title_sort | magnetic field switchable laser via optical pumping of rubrene |
| url | https://hdl.handle.net/1721.1/140301 |
| work_keys_str_mv | AT perkinsoncollinf magneticfieldswitchablelaserviaopticalpumpingofrubrene AT einzingermarkus magneticfieldswitchablelaserviaopticalpumpingofrubrene AT finleyjoseph magneticfieldswitchablelaserviaopticalpumpingofrubrene AT bawendimoungig magneticfieldswitchablelaserviaopticalpumpingofrubrene AT baldomarca magneticfieldswitchablelaserviaopticalpumpingofrubrene |