Interaction of One-Dimensional Photonic Crystals and Metal Nanoparticle Arrays and Its Application for Surface-Enhanced Raman Spectroscopy

2018 ◽  
Vol 122 (18) ◽  
pp. 10153-10158 ◽  
Author(s):  
Martin Fränzl ◽  
Stefan Moras ◽  
Ovidiu D. Gordan ◽  
Dietrich R. T. Zahn
Keyword(s):  
Raman Spectroscopy ◽  
Photonic Crystals ◽  
Surface Enhanced Raman Spectroscopy ◽  
Metal Nanoparticle ◽  
Nanoparticle Arrays ◽  
One Dimensional ◽  
Surface Enhanced ◽  
Surface Enhanced Raman

scholarly journals Surface Enhanced Raman Spectroscopy for Molecular Identification- a Review on Surface Plasmon Resonance (SPR) and Localised Surface Plasmon Resonance (LSPR) in Optical Nanobiosensing

2019 ◽  
Vol 92 (4) ◽  
pp. 479-494
Author(s):  
Leda G. Bousiakou ◽  
Hrvoje Gebavi ◽  
Lara Mikac ◽  
Stefanos Karapetis ◽  
Mile Ivanda
Keyword(s):  
Raman Spectroscopy ◽  
Surface Plasmon Resonance ◽  
Surface Plasmon ◽  
Molecular Identification ◽  
Plasmon Resonance ◽  
Surface Enhanced Raman Spectroscopy ◽  
Metal Nanoparticle ◽  
Nanoparticle Arrays ◽  
Surface Enhanced ◽  
Surface Enhanced Raman

Surface plasmon resonance (SPR) allows for real-time, label-free optical detection of many chemical and biological substances. Having emerged in the last two decades, it is a widely used technique due to its non-invasive nature, allowing for the ultra-sensitive detection of a number of analytes. This review article discusses the principles, providing examples and illustrating the utility of SPR within the frame of plasmonic nanobiosensing, while making comparisons with its successor, namely localized surface plasmon resonance (LSPR). In particular LSPR utilizes both metal nanoparticle arrays and single nanoparticles, as compared to a continuous film of gold as used in traditional SPR. LSPR, utilizes metal nanoparticle arrays or single nanoparticles that have smaller sizes than the wavelength of the incident light, measuring small changes in the wavelength of the absorbance position, rather than the angle as in SPR. We introduce LSPR nanobiosensing by describing the initial experiments performed, shift-enhancement methods, exploitation of the short electromagnetic field decay length, and single nanoparticle sensors are as pathways to further exploit the strengths of LSPR nanobiosensing. Coupling molecular identification to LSPR spectroscopy is also explored and thus examples from surface-enhanced Raman spectroscopy are provided. The unique characteristics of LSPR nanobiosensing are emphasized and the challenges using LSPR nanobiosensors for detection of biomolecules as a biomarker are discussed.

Plasmonic-3D photonic crystals microchip for surface enhanced Raman spectroscopy

2019 ◽  
Vol 143 ◽  
pp. 111596 ◽  
Author(s):  
Guojian Chen ◽  
Kelian Zhang ◽  
Baibin Luo ◽  
Wei Hong ◽  
Jian Chen ◽  
...  
Keyword(s):  
Raman Spectroscopy ◽  
Photonic Crystals ◽  
Surface Enhanced Raman Spectroscopy ◽  
Surface Enhanced ◽  
Surface Enhanced Raman

Morphological evolution of gold nanoparticles on silicon nanowires and their plasmonics

RSC Advances ◽  
2015 ◽  
Vol 5 (61) ◽  
pp. 49708-49718 ◽  
Author(s):  
Yuan Li ◽  
Wenwu Shi ◽  
Aditya Gupta ◽  
Nitin Chopra
Keyword(s):  
Gold Nanoparticles ◽  
Raman Spectroscopy ◽  
Silicon Nanowires ◽  
Au Nanoparticles ◽  
Morphological Evolution ◽  
Surface Enhanced Raman Spectroscopy ◽  
Si Nanowires ◽  
One Dimensional ◽  
Surface Enhanced ◽  
Surface Enhanced Raman

One-dimensional heterostructures composed of silicon (Si) nanowires and uniformly decorated with gold (Au) nanoparticles were fabricated and used as a substrate for organic detection based on the surface-enhanced Raman spectroscopy.

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