Sensing and Bio-Sensing Research, Год журнала: 2024, Номер unknown, С. 100705 - 100705
Опубликована: Окт. 1, 2024
Язык: Английский
Plasmonics, Год журнала: 2024, Номер unknown
Опубликована: Ноя. 4, 2024
Abstract Localized surface plasmon resonance (LSPR) is a nanoscale phenomenon associated with noble metal nanostructures that has long been studied and gained considerable interest in recent years. These resonances produce sharp spectral absorption scattering peaks, along strong electromagnetic near-field enhancements. Over the past decade, advancements fabrication of have propelled significant developments various scientific technological aspects LSPR. One notable application detection molecular interactions near nanoparticle surface, observable through shifts LSPR peak. This document provides an overview this sensing strategy. Given broad expanding scope topic, it impossible to cover every aspect comprehensively review. However, we aim outline major research efforts within field review diverse array relevant literature. We will provide detailed summary physical principles underlying address some existing inconsistencies nomenclature used. Our discussion primarily focus on sensors employ nanoparticles, rather than those utilizing extended, fabricated structures. concentrate where acts as primary mode signal transduction, excluding hybrid strategies like combining fluorescence. Additionally, our examination biological largely pertain label-free methods, use nanoparticles labels or means enhance efficacy label. In subsequent section review, delve into analytical theory underpinning LSPR, exploring its origins dependency material properties metals surrounding refractive index. discuss behavior both spherical spheroidal particles elaborate how response varies particle ratio. Further, detail fundamentals nanoparticle-based sensing. includes exploration single-particle ensemble measurements comparative analysis scattering, absorption, extinction phenomena. The extend these are applied practical scenarios, highlighting key experimental approaches measurement techniques.
Язык: Английский
Процитировано
13
Materials Today Communications, Год журнала: 2025, Номер unknown, С. 111685 - 111685
Опубликована: Янв. 1, 2025
Язык: Английский
Процитировано
0
Laser & Photonics Review, Год журнала: 2025, Номер unknown
Опубликована: Март 26, 2025
Abstract We present two designs of perfect meta‐absorbers (PMAs) utilizing metallic plasmonic grating, and they have resonances with ultranarrow bandwidth in the order nanometers great surface electric field enhancement through coupling resonance plasmon polaritons (SPPs) grating waves. Notably, grating‐coupled demonstrates pronounced incident angle dependence ambient refractive index sensitiveness. Meanwhile, its dependencies are almost linearly controlled. PMA metal‐metal (MMG) structure has period‐dependent angular sensitivity shows a 4.0039 µm/RIU that maximum figure merit (FOM) value is 2300 RIU −1 under normal light. The sensitivities 3.6514 4.3486 FOM values 2783 3941 for different oblique incidence 5°. Another design metal‐insulator‐metal (MIMG) both SPP localized (LSP) modes, it can achieve single‐frequency scanning spectral region from wavelengths 3 µm to 5 by changing or index. Finally, reconfigurable achieves active regulation irradiation simultaneously realize functions tuning, sensing so on.
Язык: Английский
Процитировано
0
Alexandria Engineering Journal, Год журнала: 2024, Номер 115, С. 169 - 176
Опубликована: Дек. 17, 2024
Язык: Английский
Процитировано
3
Optical Materials, Год журнала: 2024, Номер unknown, С. 116121 - 116121
Опубликована: Сен. 1, 2024
Язык: Английский
Процитировано
1
Sensing and Bio-Sensing Research, Год журнала: 2024, Номер unknown, С. 100705 - 100705
Опубликована: Окт. 1, 2024
Язык: Английский
Процитировано
1