Salvato in:
| Autori principali: | , , , , , , |
|---|---|
| Natura: | Preprint |
| Pubblicazione: |
2025
|
| Soggetti: | |
| Accesso online: | https://arxiv.org/abs/2511.16153 |
| Tags: |
Aggiungi Tag
Nessun Tag, puoi essere il primo ad aggiungerne!!
|
| _version_ | 1866908666744012800 |
|---|---|
| author | Lepeshov, Sergei Farbowitz, Daniel Alec Weis, Thor August Schimmell Lu, Bingrui Lahijani, Babak Vosoughi Heuck, Mikkel Stobbe, Søren |
| author_facet | Lepeshov, Sergei Farbowitz, Daniel Alec Weis, Thor August Schimmell Lu, Bingrui Lahijani, Babak Vosoughi Heuck, Mikkel Stobbe, Søren |
| contents | We present the design, fabrication, and characterization of tunable waveguide-coupled silicon bowtie cavities with strong spatial electromagnetic field confinement. We use nanoelectromechanical in-plane actuation for the tuning, as this combines cryocompatibility with an ultralow power consumption. Our device leverages a mode volume below 0.2 cubic wavelengths in the material to reach theoretical Purcell factors above 6,500 and waveguide-coupling efficiency above 30% across the full experimentally measured spectral-tuning range of 11 nm. Notably, the Purcell factor in our cavity depends only weakly on the applied voltage. Our spectral measurements demonstrate reversible tuning of bowtie cavities, and we directly show the in-plane actuation using in-situ characterization in a scanning electron microscope. Our results constitute the first demonstration of a low-loss dielectric tunable bowtie nanocavity with strong light confinement. This solves a key issue for experiments on strong light-matter interactions for cavity quantum electrodynamics and scalable photonic quantum technologies. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2511_16153 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Nanoelectromechanical spectral control of silicon bowtie nanocavities for quantum light sources Lepeshov, Sergei Farbowitz, Daniel Alec Weis, Thor August Schimmell Lu, Bingrui Lahijani, Babak Vosoughi Heuck, Mikkel Stobbe, Søren Optics We present the design, fabrication, and characterization of tunable waveguide-coupled silicon bowtie cavities with strong spatial electromagnetic field confinement. We use nanoelectromechanical in-plane actuation for the tuning, as this combines cryocompatibility with an ultralow power consumption. Our device leverages a mode volume below 0.2 cubic wavelengths in the material to reach theoretical Purcell factors above 6,500 and waveguide-coupling efficiency above 30% across the full experimentally measured spectral-tuning range of 11 nm. Notably, the Purcell factor in our cavity depends only weakly on the applied voltage. Our spectral measurements demonstrate reversible tuning of bowtie cavities, and we directly show the in-plane actuation using in-situ characterization in a scanning electron microscope. Our results constitute the first demonstration of a low-loss dielectric tunable bowtie nanocavity with strong light confinement. This solves a key issue for experiments on strong light-matter interactions for cavity quantum electrodynamics and scalable photonic quantum technologies. |
| title | Nanoelectromechanical spectral control of silicon bowtie nanocavities for quantum light sources |
| topic | Optics |
| url | https://arxiv.org/abs/2511.16153 |