Directive emission from polymeric fluorophore with epsilon-near-zero squaraine molecular film
Enhanced directionality of photoluminescence emission has attracted attention due to its diverse application areas ranging from single-photon sources to fluorescence sensing and bio-imaging. Utilization of null phase advance in epsilon-near-zero (ENZ) medium is an important scheme to achieve the dir...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
De Gruyter
2023-04-01
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| Series: | Nanophotonics |
| Subjects: | |
| Online Access: | https://doi.org/10.1515/nanoph-2022-0763 |
| _version_ | 1797789004106563584 |
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| author | Choi Kyu-Ri Kim Minjae Wu Jeong Weon D’Aléo Anthony Lee Yeon Ui |
| author_facet | Choi Kyu-Ri Kim Minjae Wu Jeong Weon D’Aléo Anthony Lee Yeon Ui |
| author_sort | Choi Kyu-Ri |
| collection | DOAJ |
| description | Enhanced directionality of photoluminescence emission has attracted attention due to its diverse application areas ranging from single-photon sources to fluorescence sensing and bio-imaging. Utilization of null phase advance in epsilon-near-zero (ENZ) medium is an important scheme to achieve the directive emission. Despite various designs proposed for ENZ-based directive emission, most of the ENZ mediums are restricted to subwavelength structures of metallic plasmonics or inorganic dielectrics. Here, we introduce an organic ENZ film placed on top of a polymeric fluorophore film to demonstrate a directive emission. By taking advantage of the structural coherence in the P3HT film and the ENZ response in the squaraine molecular film, 42 % increase in directive emission is achieved. Capability to control directive emission with organic ENZ films is highly useful in applications requiring bio-compatibility of a fluorophore-embedding medium. |
| first_indexed | 2024-03-13T01:44:37Z |
| format | Article |
| id | doaj.art-52c8b9a9806847ae83cb66a20159c9c4 |
| institution | Directory Open Access Journal |
| issn | 2192-8614 |
| language | English |
| last_indexed | 2024-03-13T01:44:37Z |
| publishDate | 2023-04-01 |
| publisher | De Gruyter |
| record_format | Article |
| series | Nanophotonics |
| spelling | doaj.art-52c8b9a9806847ae83cb66a20159c9c42023-07-03T10:20:08ZengDe GruyterNanophotonics2192-86142023-04-0112132471247810.1515/nanoph-2022-0763Directive emission from polymeric fluorophore with epsilon-near-zero squaraine molecular filmChoi Kyu-Ri0Kim Minjae1Wu Jeong Weon2D’Aléo Anthony3Lee Yeon Ui4Department of Physics, Chungbuk National University, Cheongju, Chungbuk, 28644, South KoreaDepartment of Physics, Ewha Womans University, Seoul, 03760, South KoreaDepartment of Physics, Ewha Womans University, Seoul, 03760, South KoreaUniversité de Strasbourg, CNRS, Institut de Physique et Chimie des Matériaux de Strasbourg, UMR 7504, F-67000Strasbourg, FranceDepartment of Physics, Chungbuk National University, Cheongju, Chungbuk, 28644, South KoreaEnhanced directionality of photoluminescence emission has attracted attention due to its diverse application areas ranging from single-photon sources to fluorescence sensing and bio-imaging. Utilization of null phase advance in epsilon-near-zero (ENZ) medium is an important scheme to achieve the directive emission. Despite various designs proposed for ENZ-based directive emission, most of the ENZ mediums are restricted to subwavelength structures of metallic plasmonics or inorganic dielectrics. Here, we introduce an organic ENZ film placed on top of a polymeric fluorophore film to demonstrate a directive emission. By taking advantage of the structural coherence in the P3HT film and the ENZ response in the squaraine molecular film, 42 % increase in directive emission is achieved. Capability to control directive emission with organic ENZ films is highly useful in applications requiring bio-compatibility of a fluorophore-embedding medium.https://doi.org/10.1515/nanoph-2022-0763directive emissionepsilon-near-zerometamaterialsorganic plasmonicsphotoluminescence |
| spellingShingle | Choi Kyu-Ri Kim Minjae Wu Jeong Weon D’Aléo Anthony Lee Yeon Ui Directive emission from polymeric fluorophore with epsilon-near-zero squaraine molecular film Nanophotonics directive emission epsilon-near-zero metamaterials organic plasmonics photoluminescence |
| title | Directive emission from polymeric fluorophore with epsilon-near-zero squaraine molecular film |
| title_full | Directive emission from polymeric fluorophore with epsilon-near-zero squaraine molecular film |
| title_fullStr | Directive emission from polymeric fluorophore with epsilon-near-zero squaraine molecular film |
| title_full_unstemmed | Directive emission from polymeric fluorophore with epsilon-near-zero squaraine molecular film |
| title_short | Directive emission from polymeric fluorophore with epsilon-near-zero squaraine molecular film |
| title_sort | directive emission from polymeric fluorophore with epsilon near zero squaraine molecular film |
| topic | directive emission epsilon-near-zero metamaterials organic plasmonics photoluminescence |
| url | https://doi.org/10.1515/nanoph-2022-0763 |
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