Optical Conduction Resonance in Self-Assembled Metal Nanoparticle Array-Dielectric Thin Films
Author
Source
Issue
Vol. 2018, Issue 2018 (31 Dec. 2018), pp.1-9, 9 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2018-12-10
Country of Publication
Egypt
No. of Pages
9
Main Subjects
Abstract EN
Optical conduction resonance- (OCR-) enhanced third-order optical nonlinearity of two dimensional (2D) periodic gold nanoparticle array-dielectric thin films has been investigated.
The third-order optical susceptibility of periodic gold nanoparticle array embedded in silica thin film shows ~104 enhancement comparing to gold nanoparticle colloids.
The 2D gold nanoparticle arrays were synthesized by using the electrostatic self-assembly (ESA) technique.
During the fabrication process, the positively or negatively functionalized gold nanoparticles are automatically self-aligned to establish a 2D array with a very small interparticle spacing due to the polymer shell on the metal particles.
Then, a monolayer of silica can be coated on the top of the 2D metal nanoparticle array.
This type of 2D gold nanoparticle array-dielectric thin films has high volume fraction of gold nanoparticles.
According to the extended Maxwell-Garnett theory, this kind of films can exhibit OCR.
The OCR frequency can be tuned from visible to mid-infrared by controlling the gold nanoparticle volume fraction.
During OCR, the real part of the composite dielectric constant is zero to make the induced electromagnetic waves in gold nanoparticles to couple effectively within the film.
The open-aperture z-scan technique is used to measure the nonlinear optical properties of the ESA films.
American Psychological Association (APA)
Zhang, Liangmin. 2018. Optical Conduction Resonance in Self-Assembled Metal Nanoparticle Array-Dielectric Thin Films. Journal of Nanomaterials،Vol. 2018, no. 2018, pp.1-9.
https://search.emarefa.net/detail/BIM-1194928
Modern Language Association (MLA)
Zhang, Liangmin. Optical Conduction Resonance in Self-Assembled Metal Nanoparticle Array-Dielectric Thin Films. Journal of Nanomaterials No. 2018 (2018), pp.1-9.
https://search.emarefa.net/detail/BIM-1194928
American Medical Association (AMA)
Zhang, Liangmin. Optical Conduction Resonance in Self-Assembled Metal Nanoparticle Array-Dielectric Thin Films. Journal of Nanomaterials. 2018. Vol. 2018, no. 2018, pp.1-9.
https://search.emarefa.net/detail/BIM-1194928
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1194928