Hybrid guided space-time optical modes in unpatterned films
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| 出版年: | Nature Communications vol. 11, no. 1 (2020) |
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| 第一著者: | |
| その他の著者: | , , , |
| 出版事項: |
Nature Publishing Group
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| 主題: | |
| オンライン･アクセス: | Citation/Abstract Full Text - PDF |
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| 024 | 7 | |a 10.1038/s41467-020-20009-2 |2 doi | |
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| 100 | 1 | |a Abbas, Shiri |u University of Central Florida, CREOL, The College of Optics & Photonics, Orlando, USA (GRID:grid.170430.1) (ISNI:0000 0001 2159 2859); University of Central Florida, Department of Electrical and Computer Engineering, Orlando, USA (GRID:grid.170430.1) (ISNI:0000 0001 2159 2859) | |
| 245 | 1 | |a Hybrid guided space-time optical modes in unpatterned films | |
| 260 | |b Nature Publishing Group |c 2020 | ||
| 513 | |a Journal Article | ||
| 520 | 3 | |a Light is confined transversely and delivered axially in a waveguide. However, waveguides are lossy static structures whose modal characteristics are fundamentally determined by their boundary conditions. Here we show that unpatterned planar waveguides can provide low-loss two-dimensional waveguiding by using space-time wave packets, which are unique one-dimensional propagation-invariant pulsed optical beams. We observe hybrid guided space-time modes that are index-guided in one transverse dimension and localized along the unbounded dimension. We confirm that these fields enable overriding the boundary conditions by varying post-fabrication the group index of the fundamental mode in a 2-μm-thick, 25-mm-long silica film, achieved by modifying the field’s spatio-temporal structure. Tunability of the group index over an unprecedented range from 1.26 to 1.77 is verified while maintaining a spectrally flat zero-dispersion profile. Our work paves the way to utilizing space-time wave packets in on-chip platforms, and enable phase-matching strategies that circumvent restrictions due to intrinsic material properties.Waveguides typically function by using boundary conditions to contain light. Here, the authors show that by using space-time wavepackets, light can be guided in an unpatterned planar waveguide as the field remains localized along the unbounded dimension. | |
| 653 | |a Planar waveguides | ||
| 653 | |a Boundary conditions | ||
| 653 | |a Material properties | ||
| 653 | |a Fabrication | ||
| 653 | |a Wave packets | ||
| 653 | |a Phase matching | ||
| 653 | |a Silicon dioxide | ||
| 653 | |a Spacetime | ||
| 653 | |a Wave propagation | ||
| 653 | |a Pulse propagation | ||
| 653 | |a Silica | ||
| 653 | |a Environmental | ||
| 700 | 1 | |a Yessenov Murat |u University of Central Florida, CREOL, The College of Optics & Photonics, Orlando, USA (GRID:grid.170430.1) (ISNI:0000 0001 2159 2859) | |
| 700 | 1 | |a Webster, Scott |u University of Central Florida, CREOL, The College of Optics & Photonics, Orlando, USA (GRID:grid.170430.1) (ISNI:0000 0001 2159 2859) | |
| 700 | 1 | |a Schepler, Kenneth L |u University of Central Florida, CREOL, The College of Optics & Photonics, Orlando, USA (GRID:grid.170430.1) (ISNI:0000 0001 2159 2859) | |
| 700 | 1 | |a Abouraddy, Ayman F |u University of Central Florida, CREOL, The College of Optics & Photonics, Orlando, USA (GRID:grid.170430.1) (ISNI:0000 0001 2159 2859); University of Central Florida, Department of Electrical and Computer Engineering, Orlando, USA (GRID:grid.170430.1) (ISNI:0000 0001 2159 2859) | |
| 773 | 0 | |t Nature Communications |g vol. 11, no. 1 (2020) | |
| 786 | 0 | |d ProQuest |t Health & Medical Collection | |
| 856 | 4 | 1 | |3 Citation/Abstract |u https://www.proquest.com/docview/2473292042/abstract/embedded/7BTGNMKEMPT1V9Z2?source=fedsrch |
| 856 | 4 | 0 | |3 Full Text - PDF |u https://www.proquest.com/docview/2473292042/fulltextPDF/embedded/7BTGNMKEMPT1V9Z2?source=fedsrch |