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Linking plasma formation in grapes to microwave resonances of aqueous dimers
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| Zeitschriftentitel: | Proceedings of the National Academy of Sciences |
|---|---|
| Personen und Körperschaften: | , , |
| In: | Proceedings of the National Academy of Sciences, 116, 2019, 10, S. 4000-4005 |
| Format: | E-Article |
| Sprache: | Englisch |
| veröffentlicht: |
Proceedings of the National Academy of Sciences
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Khattak, Hamza K. Bianucci, Pablo Slepkov, Aaron D. Khattak, Hamza K. Bianucci, Pablo Slepkov, Aaron D. |
|---|---|
| author |
Khattak, Hamza K. Bianucci, Pablo Slepkov, Aaron D. |
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Khattak, Hamza K. Bianucci, Pablo Slepkov, Aaron D. Proceedings of the National Academy of Sciences Linking plasma formation in grapes to microwave resonances of aqueous dimers Multidisciplinary |
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khattak, hamza k. |
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Khattak, Hamza K. Bianucci, Pablo Slepkov, Aaron D. 0027-8424 1091-6490 Proceedings of the National Academy of Sciences Multidisciplinary http://dx.doi.org/10.1073/pnas.1818350116 <jats:title>Significance</jats:title> <jats:p>In a popular parlor trick, plasma is created by irradiating grape hemispheres in a household microwave oven. This work ties the source of the plasma to microwave photonic hotspots at the junction of aqueous dielectric spherical dimers. We use a combination of thermal-imaging techniques and computer simulations to show that grape-sized fruit and hydrogel beads form resonant cavities that concentrate electromagnetic fields to extreme subwavelength regions. This is enabled by the large dielectric susceptibility of water at microwave frequencies. Furthermore, the absorptive properties of water are key to washing out complex internal modes and for allowing the evanescent hotspot build-up. Our approach to microwave resonances in high-dielectric materials opens a sandbox for nanocluster photonics research.</jats:p> Linking plasma formation in grapes to microwave resonances of aqueous dimers Proceedings of the National Academy of Sciences |
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| title |
Linking plasma formation in grapes to microwave resonances of aqueous dimers |
| title_unstemmed |
Linking plasma formation in grapes to microwave resonances of aqueous dimers |
| title_full |
Linking plasma formation in grapes to microwave resonances of aqueous dimers |
| title_fullStr |
Linking plasma formation in grapes to microwave resonances of aqueous dimers |
| title_full_unstemmed |
Linking plasma formation in grapes to microwave resonances of aqueous dimers |
| title_short |
Linking plasma formation in grapes to microwave resonances of aqueous dimers |
| title_sort |
linking plasma formation in grapes to microwave resonances of aqueous dimers |
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Multidisciplinary |
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http://dx.doi.org/10.1073/pnas.1818350116 |
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2019 |
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4000-4005 |
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<jats:title>Significance</jats:title>
<jats:p>In a popular parlor trick, plasma is created by irradiating grape hemispheres in a household microwave oven. This work ties the source of the plasma to microwave photonic hotspots at the junction of aqueous dielectric spherical dimers. We use a combination of thermal-imaging techniques and computer simulations to show that grape-sized fruit and hydrogel beads form resonant cavities that concentrate electromagnetic fields to extreme subwavelength regions. This is enabled by the large dielectric susceptibility of water at microwave frequencies. Furthermore, the absorptive properties of water are key to washing out complex internal modes and for allowing the evanescent hotspot build-up. Our approach to microwave resonances in high-dielectric materials opens a sandbox for nanocluster photonics research.</jats:p> |
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| author | Khattak, Hamza K., Bianucci, Pablo, Slepkov, Aaron D. |
| author_facet | Khattak, Hamza K., Bianucci, Pablo, Slepkov, Aaron D., Khattak, Hamza K., Bianucci, Pablo, Slepkov, Aaron D. |
| author_sort | khattak, hamza k. |
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| description | <jats:title>Significance</jats:title> <jats:p>In a popular parlor trick, plasma is created by irradiating grape hemispheres in a household microwave oven. This work ties the source of the plasma to microwave photonic hotspots at the junction of aqueous dielectric spherical dimers. We use a combination of thermal-imaging techniques and computer simulations to show that grape-sized fruit and hydrogel beads form resonant cavities that concentrate electromagnetic fields to extreme subwavelength regions. This is enabled by the large dielectric susceptibility of water at microwave frequencies. Furthermore, the absorptive properties of water are key to washing out complex internal modes and for allowing the evanescent hotspot build-up. Our approach to microwave resonances in high-dielectric materials opens a sandbox for nanocluster photonics research.</jats:p> |
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| spelling | Khattak, Hamza K. Bianucci, Pablo Slepkov, Aaron D. 0027-8424 1091-6490 Proceedings of the National Academy of Sciences Multidisciplinary http://dx.doi.org/10.1073/pnas.1818350116 <jats:title>Significance</jats:title> <jats:p>In a popular parlor trick, plasma is created by irradiating grape hemispheres in a household microwave oven. This work ties the source of the plasma to microwave photonic hotspots at the junction of aqueous dielectric spherical dimers. We use a combination of thermal-imaging techniques and computer simulations to show that grape-sized fruit and hydrogel beads form resonant cavities that concentrate electromagnetic fields to extreme subwavelength regions. This is enabled by the large dielectric susceptibility of water at microwave frequencies. Furthermore, the absorptive properties of water are key to washing out complex internal modes and for allowing the evanescent hotspot build-up. Our approach to microwave resonances in high-dielectric materials opens a sandbox for nanocluster photonics research.</jats:p> Linking plasma formation in grapes to microwave resonances of aqueous dimers Proceedings of the National Academy of Sciences |
| spellingShingle | Khattak, Hamza K., Bianucci, Pablo, Slepkov, Aaron D., Proceedings of the National Academy of Sciences, Linking plasma formation in grapes to microwave resonances of aqueous dimers, Multidisciplinary |
| title | Linking plasma formation in grapes to microwave resonances of aqueous dimers |
| title_full | Linking plasma formation in grapes to microwave resonances of aqueous dimers |
| title_fullStr | Linking plasma formation in grapes to microwave resonances of aqueous dimers |
| title_full_unstemmed | Linking plasma formation in grapes to microwave resonances of aqueous dimers |
| title_short | Linking plasma formation in grapes to microwave resonances of aqueous dimers |
| title_sort | linking plasma formation in grapes to microwave resonances of aqueous dimers |
| title_unstemmed | Linking plasma formation in grapes to microwave resonances of aqueous dimers |
| topic | Multidisciplinary |
| url | http://dx.doi.org/10.1073/pnas.1818350116 |