Enhanced nonlinear optical properties of LiNbO3 crystal embedded with CuZn alloy nanoparticles by ion implantation
| Autor: | Yongjie Sun, Gang Wang, Changlong Liu, Yixiao Niu, Yingying Wang |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
Materials science
Physics::Instrumentation and Detectors Physics::Optics Nanoparticle 02 engineering and technology 010402 general chemistry 01 natural sciences law.invention Condensed Matter::Materials Science law Physics::Atomic and Molecular Clusters Materials Chemistry Surface plasmon resonance Absorption (electromagnetic radiation) Nanocomposite business.industry Mechanical Engineering Metals and Alloys Saturable absorption 021001 nanoscience & nanotechnology Laser 0104 chemical sciences Ion implantation Mechanics of Materials Optoelectronics Photonics 0210 nano-technology business |
| Zdroj: | Journal of Alloys and Compounds. 778:691-698 |
| ISSN: | 0925-8388 |
| DOI: | 10.1016/j.jallcom.2018.11.182 |
| Popis: | LiNbO3 crystal, as a typical nonlinear optical material, has attracted considerable interest in photonic device applications. However, LiNbO3 shows weak nonlinear optical responses due to its low laser damage threshold. Herein, the optical nonlinearities of LiNbO3 are enhanced by inducing CuZn alloy nanoparticles (NPs). The structural and optical properties of LiNbO3 with embedded NPs were investigated in detail. The third-order nonlinear susceptibilities of CuZn: LiNbO3 nanocomposites exhibit nearly 4 orders of magnitude greater than the untreated LiNbO3 due to the localized surface plasmon resonance effect. Furthermore, the nanocomposites suffer conversion from reverse-saturable absorption to saturable absorption compared with the pure LiNbO3. This feature makes the nanocomposites a potential saturable absorber leading to the realization of efficient pulse lasers. |
| Databáze: | OpenAIRE |
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