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| 001 | 605790 | ||
| 005 | 20250723171720.0 | ||
| 024 | 7 | _ | |a 10.48550/ARXIV.2404.15712 |2 doi |
| 024 | 7 | _ | |a 10.3204/PUBDB-2024-01530 |2 datacite_doi |
| 024 | 7 | _ | |a arXiv:2404.15712 |2 arXiv |
| 024 | 7 | _ | |a openalex:W4395483246 |2 openalex |
| 037 | _ | _ | |a PUBDB-2024-01530 |
| 041 | _ | _ | |a English |
| 088 | _ | _ | |a arXiv:2404.15712 |2 arXiv |
| 100 | 1 | _ | |a Fan, Weichen |0 P:(DE-H253)PIP1099782 |b 0 |
| 245 | _ | _ | |a Supercontinua from integrated gallium nitride waveguides |
| 260 | _ | _ | |c 2024 |
| 336 | 7 | _ | |a Preprint |b preprint |m preprint |0 PUB:(DE-HGF)25 |s 1725261901_1114385 |2 PUB:(DE-HGF) |
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| 336 | 7 | _ | |a Electronic Article |0 28 |2 EndNote |
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| 336 | 7 | _ | |a ARTICLE |2 BibTeX |
| 336 | 7 | _ | |a Output Types/Working Paper |2 DataCite |
| 520 | _ | _ | |a Supercontinua are broadband spectra that are essential to optical spectroscopy, sensing, imaging, and metrology. They are generated from ultrashort laser pulses through nonlinear frequency conversion in fibers, bulk media and chip-integrated waveguides. For any generating platform, balancing the oppositional criteria of strong nonlinearity, transparency, and absence of multiphoton absorption is a key challenge.Here, we explore supercontinuum generation in integrated gallium nitride (GaN) waveguides, which combine a high Kerr-nonlinearity, mid-infrared transparency and a large bandgap that prevents two- and three-photon absorption in the technologically important telecom C-band where compact erbium-based pump lasers exist. With such a laser, we demonstrate tunable dispersive waves and gap-free spectra extending to almost 4 µm in wavelength, relevant to functional group chemical sensing.In addition, also leveraging the material’s second-order nonlinearity, we implement on-chip f-2f interferometry to detect the pump laser's carrier-envelope offset frequency, which enables precision metrology. These results demonstrate the versatility of GaN-on-sapphire as a new platform for broadband nonlinear photonics. |
| 536 | _ | _ | |a 631 - Matter – Dynamics, Mechanisms and Control (POF4-631) |0 G:(DE-HGF)POF4-631 |c POF4-631 |f POF IV |x 0 |
| 536 | _ | _ | |a STARCHIP - Microphotonics-based frequency combs for habitable exoplanet detection (853564) |0 G:(EU-Grant)853564 |c 853564 |f ERC-2019-STG |x 1 |
| 536 | _ | _ | |a VH-NG-1404 - Ultra-fast nonlinear microphotonics (G:(DE-HGF)2019_VH-NG-1404) |0 G:(DE-HGF)2019_VH-NG-1404 |c G:(DE-HGF)2019_VH-NG-1404 |x 2 |
| 536 | _ | _ | |a iSenseDNA - Computation driven development of novel vivo-like-DNA-nanotransducers for biomolecules structure identification (101046920) |0 G:(EU-Grant)101046920 |c 101046920 |f HORIZON-EIC-2021-PATHFINDEROPEN-01 |x 3 |
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| 650 | _ | 7 | |a Optics (physics.optics) |2 Other |
| 650 | _ | 7 | |a FOS: Physical sciences |2 Other |
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| 700 | 1 | _ | |a Ludwig, Markus |0 P:(DE-H253)PIP1094475 |b 1 |
| 700 | 1 | _ | |a Rousseau, Ian |0 P:(DE-HGF)0 |b 2 |
| 700 | 1 | _ | |a Arabadzhiev, Ivo |0 P:(DE-HGF)0 |b 3 |
| 700 | 1 | _ | |a Ruhnke, Bastian |0 P:(DE-H253)PIP1094526 |b 4 |
| 700 | 1 | _ | |a Wildi, Thibault |0 P:(DE-H253)PIP1094154 |b 5 |
| 700 | 1 | _ | |a Herr, Tobias |0 P:(DE-H253)PIP1092814 |b 6 |e Corresponding author |
| 773 | _ | _ | |a 10.48550/ARXIV.2404.15712 |
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| 856 | 4 | _ | |u https://bib-pubdb1.desy.de/record/605790/files/internal%20review.pdf |
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