在蓝宝石波导上的氮化硅负载铌酸锂中产生中红外超连续真空

IF 2.5 3区 物理与天体物理 Q3 MATERIALS SCIENCE, MULTIDISCIPLINARY Photonics and Nanostructures-Fundamentals and Applications Pub Date : 2024-05-09 DOI:10.1016/j.photonics.2024.101274
Kokou Firmin Fiaboe , Marina Raevskaia , Marko Perestjuk , Alberto Della-Torre , Thach Nguyen , Arnan Mitchell , Christelle Monat , Christian Grillet
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引用次数: 0

摘要

在光谱学中,获得中红外区域内的各种波长对于进行全面和多功能分析至关重要。在我们的研究中,我们成功地在蓝宝石衬底上加载铌酸锂的氮化硅波导内数值演示了超连续光的产生,重点是中红外波长范围。通过采用有效的横向泄漏和色散工程技术,我们极大地拓宽了系统的光谱范围,涵盖了从近红外(近红外)到中红外(中红外)区域的波长。我们的研究结果表明,当氮化硅负载的铌酸锂波导在 2070 nm 波长处受到市售飞秒光纤激光器泵浦的激励时,它能够在中红外波长范围内产生跨度超过一个倍频程的超连续。
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Mid-IR supercontinuum generation in a silicon nitride loaded lithium niobate on sapphire waveguide

In spectroscopy, having access to a wide range of wavelengths within the mid-infrared region is crucial for conducting thorough and versatile analyses. In our research, we successfully demonstrate numerically the generation of supercontinuum within a waveguide made of silicon nitride loaded onto lithium niobate on a sapphire substrate, with a specific focus on the mid-infrared wavelength range. By implementing effective lateral leakage and dispersion engineering techniques, we have significantly broadened our system’s spectral range, covering wavelengths from the near-infrared (near-IR) to the mid-infrared (mid-IR) regions. Our results indicate that when a silicon nitride-loaded lithium niobate waveguide is excited with a commercially available femtosecond fiber laser pump at 2070 nm, it has the capability to produce a supercontinuum that spans more than one octave within the mid-infrared wavelength range.

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来源期刊
CiteScore
5.00
自引率
3.70%
发文量
77
审稿时长
62 days
期刊介绍: This journal establishes a dedicated channel for physicists, material scientists, chemists, engineers and computer scientists who are interested in photonics and nanostructures, and especially in research related to photonic crystals, photonic band gaps and metamaterials. The Journal sheds light on the latest developments in this growing field of science that will see the emergence of faster telecommunications and ultimately computers that use light instead of electrons to connect components.
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