dorsal/arxiv
View SchemaSpatio-spectrally tailored multimode metasurface lasers in the visible range
| Authors | Ayesheh Bashiri, Aleksandr Vaskin, Katsuya Tanaka, Muyi Yang, Thomas Pertsch, Isabelle Staude |
|---|---|
| Categories | |
| ArXiv ID | 2601.10546vv1 |
| URL | https://arxiv.org/abs/2601.10546 |
| License | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ |
Abstract
Spectrally engineered multifrequency nanolasers are highly desirable for on-chip photonics, multiplexed biosensing, and display technologies; yet, achieving them within a single compact platform remains challenging. Here, we demonstrate multimode lasing from symmetry-broken TiO2 metasurfaces integrated with an SU8 slab waveguide containing Rhodamine 6G. By co-engineering guided-mode resonances, surface lattice resonances near Rayleigh anomalies, and quasi-bound states in the continuum, we realize complementary high-Q feedback pathways that overlap with the gain spectrum. The direction of the lasing emission is tailored through outcoupling via second-order Bragg diffraction and Rayleigh anomaly conditions, supporting both normal and oblique emission. Experiments reveal discrete lasing outputs across ~100 nm bandwidth (548-648 nm), spanning nearly the full Rhodamine 6G emission band, with thresholds as low as ~7 nJ per pulse (35.7 uJ/cm^2) and up to four concurrent lasing peaks from a single device. These results establish a metasurface-dye platform for multifrequency and angle-selective lasing, opening new opportunities for compact, multifunctional nanophotonic sources.
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"abstract": "Spectrally engineered multifrequency nanolasers are highly desirable for on-chip photonics, multiplexed biosensing, and display technologies; yet, achieving them within a single compact platform remains challenging. Here, we demonstrate multimode lasing from symmetry-broken TiO2 metasurfaces integrated with an SU8 slab waveguide containing Rhodamine 6G. By co-engineering guided-mode resonances, surface lattice resonances near Rayleigh anomalies, and quasi-bound states in the continuum, we realize complementary high-Q feedback pathways that overlap with the gain spectrum. The direction of the lasing emission is tailored through outcoupling via second-order Bragg diffraction and Rayleigh anomaly conditions, supporting both normal and oblique emission. Experiments reveal discrete lasing outputs across ~100 nm bandwidth (548-648 nm), spanning nearly the full Rhodamine 6G emission band, with thresholds as low as ~7 nJ per pulse (35.7 uJ/cm^2) and up to four concurrent lasing peaks from a single device. These results establish a metasurface-dye platform for multifrequency and angle-selective lasing, opening new opportunities for compact, multifunctional nanophotonic sources.",
"arxiv_id": "2601.10546",
"authors": [
"Ayesheh Bashiri",
"Aleksandr Vaskin",
"Katsuya Tanaka",
"Muyi Yang",
"Thomas Pertsch",
"Isabelle Staude"
],
"categories": [
"physics.optics"
],
"license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
"title": "Spatio-spectrally tailored multimode metasurface lasers in the visible range",
"url": "https://arxiv.org/abs/2601.10546",
"version": "v1"
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