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Ultrafast All-Optical Switching with Magnetic Resonances in Nonlinear Dielectric Nanostructures.
| Content Provider | Semantic Scholar |
|---|---|
| Author | Shcherbakov, Maxim R. Vabishchevich, Polina P. Shorokhov, Alexander S. Chong, Katie E. Choi, Duk-Yong Staude, Isabelle Miroshnichenko, Andrey E. Neshev, Dragomir N. Fedyanin, Andrey A. Kivshar, Yuri S. |
| Copyright Year | 2015 |
| Abstract | We demonstrate experimentally ultrafast all-optical switching in subwavelength nonlinear dielectric nanostructures exhibiting localized magnetic Mie resonances. We employ amorphous silicon nanodisks to achieve strong self-modulation of femtosecond pulses with a depth of 60% at picojoule-per-disk pump energies. In the pump-probe measurements, we reveal that switching in the nanodisks can be governed by pulse-limited 65 fs-long two-photon absorption being enhanced by a factor of 80 with respect to the unstructured silicon film. We also show that undesirable free-carrier effects can be suppressed by a proper spectral positioning of the magnetic resonance, making such a structure the fastest all-optical switch operating at the nanoscale. |
| File Format | PDF HTM / HTML |
| DOI | 10.1021/acs.nanolett.5b02989 |
| Alternate Webpage(s) | https://www.nanolab.phys.msu.ru/sites/default/files/nanolett15_6985_2015_0.pdf |
| Alternate Webpage(s) | https://istina.msu.ru/download/11561762/1eUoJi:ML3ntlQD8CmUGyo6HiDGR9WKnS0/ |
| PubMed reference number | 26393983 |
| Alternate Webpage(s) | https://doi.org/10.1021/acs.nanolett.5b02989 |
| Journal | Medline |
| Volume Number | 15 |
| Issue Number | 10 |
| Journal | Nano letters |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
