Nonlinear Optical Properties of Silver Nanoparticles: A Comprehensive Review | ||
| Laser Innovations for Research and Applications | ||
| Volume 2, Issue 2, June 2025 PDF (345.2 K) | ||
| Document Type: Review article | ||
| DOI: 10.21608/lira.2025.383757.1007 | ||
| Authors | ||
| Hamza Qayyum1; Samar Mamdouh2; Alaa Mahmoud* 2; Tarek Mohamed3 | ||
| 1Laser-Matter Interaction Laboratory, Department of Physics, COMSATS University Islamabad, Park Road, Islamabad 45550, Pakistan | ||
| 2Laser Institute for Research and Applications LIRA, Beni-Suef University, Beni-Suef 62511, Egypt | ||
| 3Laser Institute for Research and Applications LIRA, Beni-Suef University, Beni-Suef 62511, Egypt; Department of Engineering, Faculty of Advanced Technology and Multidiscipline, Universitas Airlangga, Indonesia | ||
| Abstract | ||
| Nonlinear optics has become an essential area of study for understanding and harnessing the complex light-matter interactions that occur in molecules, nanostructures, and advanced materials. This review introduces a summary of the latest advancements, with a particular focus on the nonlinear optical characteristics of noble metal nanoparticles, especially silver nanoparticles (AgNPs). These nanomaterials have gained significant interest due to their typical plasmonic features and size-dependent behavior. Silver nanoparticle colloids demonstrate enhanced light absorption at high intensities, known as reverse saturable absorption, along with a self-defocusing optical response characterized by a negative nonlinear refractive index. It has been observed that the size of noble metal nanoparticles significantly influences their nonlinear optical properties. The thermal lens phenomenon was addressed utilizing a unique approach that considers the cumulative thermal lensing effect induced in the sample caused by high-repetition-rate femtosecond laser pulses. The article highlights current challenges and prospects in the field, particularly in the development of nonlinear optical materials for photonic, sensing, and optical limiting applications. | ||
| Keywords | ||
| Nonlinear optics; silver nanoparticles; nonlinear absorption; nonlinear refractive index | ||
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