Gamma radiation effects on silicon photonic waveguides
| Autor: | Stefano Grillanda, Vivek K. Singh, Vivek Raghunathan, Andrea Melloni, Lionel C. Kimerling, Francesco Morichetti, Anuradha M. Agarwal |
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| Rok vydání: | 2016 |
| Předmět: |
Amorphous silicon
Materials science Silicon dioxide Hybrid silicon laser 02 engineering and technology Chemical vapor deposition 01 natural sciences 010309 optics chemistry.chemical_compound Optics Atomic and Molecular Physics 0103 physical sciences Crystalline silicon Irradiation Integrated Optics Silicon photonics business.industry 021001 nanoscience & nanotechnology Atomic and Molecular Physics and Optics Atomic and Molecular Physics and Optics Integrated Optics chemistry Optoelectronics and Optics Photonics 0210 nano-technology business |
| Zdroj: | Optics letters. 41(13) |
| ISSN: | 1539-4794 |
| Popis: | To support the use of integrated photonics in harsh environments, such as outer space, the hardness threshold to high-energy radiation must be established. Here, we investigate the effects of gamma (γ) rays, with energy in the MeV-range, on silicon photonic waveguides. By irradiation of high-quality factor amorphous silicon core resonators, we measure the impact of γ rays on the materials incorporated in our waveguide system, namely amorphous silicon, silicon dioxide, and polymer. While we show the robustness of amorphous silicon and silicon dioxide up to an absorbed dose of 15 Mrad, more than 100× higher than previous reports on crystalline silicon, polymer materials exhibit changes with doses as low as 1 Mrad. |
| Databáze: | OpenAIRE |
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