Optical modulation in Ge-rich SiGe waveguides in the mid-infrared wavelength range up to 11 µm
| العنوان: | Optical modulation in Ge-rich SiGe waveguides in the mid-infrared wavelength range up to 11 µm |
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| المؤلفون: | Xavier Le Roux, Carlos Alonso-Ramos, David Bouville, Laurent Vivien, Qiankun Liu, Giovanni Isella, Vladyslav Vakarin, Jacopo Frigerio, Andrea Barzaghi, Lucas Deniel, Delphine Marris-Morini, Andrea Ballabio, Joan Manel Ramirez, Miguel Montesinos-Ballester |
| المساهمون: | Centre de Nanosciences et de Nanotechnologies (C2N), Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS), Politecnico di Milano [Milan] (POLIMI) |
| المصدر: | Communications Materials, Vol 1, Iss 1, Pp 1-6 (2020) Communications Materials Communications Materials, 2020, 1 (1), ⟨10.1038/s43246-019-0003-8⟩ |
| بيانات النشر: | Nature Portfolio, 2020. |
| سنة النشر: | 2020 |
| مصطلحات موضوعية: | Materials science, Physics::Optics, 02 engineering and technology, 01 natural sciences, law.invention, 010309 optics, law, 0103 physical sciences, Broadband, General Materials Science, Materials of engineering and construction. Mechanics of materials, Range (particle radiation), [PHYS.PHYS.PHYS-OPTICS]Physics [physics]/Physics [physics]/Optics [physics.optics], Wavelength range, business.industry, 021001 nanoscience & nanotechnology, Wavelength, Optical modulator, Mechanics of Materials, Modulation, TA401-492, Optoelectronics, Photonics, 0210 nano-technology, business, Waveguide |
| الوصف: | Waveguide integrated optical modulators in the mid-infrared wavelength range are of significant interest for molecular spectroscopy. This is because on-chip synchronous detection can improve the performance of detection systems and can also be used for free-space communications where optical modulators working in atmospheric transparency windows are needed. Here we report optical modulation in a mid-infrared photonic circuit, reaching wavelengths larger than 8 µm. Optical modulation in the wavelength range from 5.5 to 11 µm is shown, relying on a broadband Ge-rich graded-SiGe platform. This demonstration experimentally confirms the free-carrier absorption effect modeling. These results pave the way towards efficient high-performance electrically-driven integrated optical modulators in the mid-infrared wavelength range. Mid-infrared optical modulators are important for detecting compounds in a wide range of applications, but are typically limited to short wavelengths. Now, a SiGe waveguide is used to fabricate an optical modulator that can reach wavelengths spanning 5.5 µm to 11 µm. |
| اللغة: | English |
| تدمد: | 2662-4443 |
| الوصول الحر: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7cc435943a9e4ec60d7ba2a6e920dbd0Test https://doaj.org/article/8691f779a5884daeaf5b771b7e2fd0afTest |
| حقوق: | OPEN |
| رقم الانضمام: | edsair.doi.dedup.....7cc435943a9e4ec60d7ba2a6e920dbd0 |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 26624443 |
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