Plasmonic and Nonlinear Optical Absorption Properties of Ag:ZrO2 Nanocomposite Thin Films

Kumar, Manish; Sandeep, C. S. Suchand; Kumar, Gagan; Mishra, Yogendra Kumar; Philip, Reji; Reddy, G. B.

doi:10.1007/s11468-013-9605-z

Cited by 74 publications

(41 citation statements)

References 29 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Noble metal nanoparticles are extensively used for applications, such as photocatalysis, non-linear optical activity, biological, and chemical sensing [1][2][3][4][5]. Such interests have been largely based on their peculiar plasmonic properties due to their collective electronic resonance, commonly known as localized surface plasmons.…”

Section: Introductionmentioning

confidence: 99%

Stability-Inspired Entrapment of Ag Nanoparticles in ZrO2 Thin films

Kumar

Reddy

2015

Plasmonics

Self Cite

View full text Add to dashboard Cite

Shape and size consistency of Ag nanoparticles is a challenging aspect when practical plasmonic devices are to be developed for their surface-specific activities. This study presents a simple chemical synthesis process which enables effective and rather uniform entrapment of Ag nanoparticles in dielectric oxide matrix at room temperature, without any assistance of physical/chemical agents. Uniformly distributed citrates capped Ag nanoparticles were preformed with a modified BTurkevich^approach and subsequently entrapped in mesoporous ZrO 2 thin films. On the basis of transmission electron microscopy and photoelectron spectroscopy, results, size, shape, and chemical states of Ag nanoparticles were studied and correlated to the plasmonic properties of nanocomposite film formed by such entrapped nanoparticles. Plasmonic stability of these nanoparticles was confirmed in comparison of their dispersion on glass, and explained using extended Mie scattering theory.

show abstract

Section: Introductionmentioning

confidence: 99%

Stability-Inspired Entrapment of Ag Nanoparticles in ZrO2 Thin films

Kumar

Reddy

2015

Plasmonics

Self Cite

View full text Add to dashboard Cite

show abstract

“…This ability results in a strong enhancement of local electric fields, which is extremely useful for sensing [2][3][4][5][6][7], enhanced optical nonlinearity [8,9], plasmonic laser [10], and light harvesting [11]. Commercially available surface plasmon refractive index (RI) sensors are so far dominated by those based on propagating surface plasmon resonance (PSPR).…”

Section: Introductionmentioning

confidence: 99%

Dislocated Double-Layered Metal Gratings: Refractive Index Sensors with High Figure of Merit

et al. 2015

View full text Add to dashboard Cite

We experimentally demonstrate an enhanced refractive index sensing using a dislocated double-layered metal grating (DDMG). The DDMG is capable of supporting a novel guided mode caused by the interaction between localized surface plasmon resonances (LSPRs) from the individual gold stripes and Wood's anomaly in the dielectric grating layer between two gold gratings. We show that this guided mode can only be induced and mediated by the coupling of lattice plasmon resonances sustained by upper and lower gold grating through introducing a lateral displacement between the two gold gratings. The DDMG provides an experimental figure of merit (FOM) value up to 36 under normal incidence, which is superior to those of most of nanoplasmonic sensors relying on Fano resonances. Additionally, the DDMGs can be fabricated by a very simple and cost-effective method via a combination of two-beam interference lithography and metal deposition. Accompanied with high FOM and simple detection scheme, this sensor will be found in a wide range of applications in biomedical sensing.

show abstract

“…Metal nanoparticles of different shapes were considered in this work. Numerous experimental works are devoted to studies of nanocomposite thin films [see, for example, [5][6][7][8]]. In part, the work [6] is devoted to studies of the changes in the structural and morphological features occurring in a particular type of nanocomposite thin-film system, composed of Au nanoparticles embedded in TiO 2 dielectric matrix.…”

Section: Introductionmentioning

confidence: 99%

“…In ref. [7], the synthesis of Ag/ZrO 2 nanocomposite thin films by using the sol-gel technique with thermal annealing was reported. Average diameters of Ag nanoparticles in the nanocomposite film have been varied from 7 to 20 nm.…”

Section: Introductionmentioning

confidence: 99%

Self-Consistent Approach to Calculation of the Optical Response and Absorption Profiles of Thin Nanocomposite Films

2015

View full text Add to dashboard Cite

The absorption profiles for different nanocomposite thin films are calculated in the frame of approach based on a local-field method for calculations of optical properties of nanocomposite thin films having a matrix topology. The electrodynamic interactions between the inclusions as well as inclusions-matrix interactions are explicitly taken into account. It is shown that the absorption spectra are strongly dependent both on inclusions concentration and on materials the nanocomposite is made of. The dependences of the effective dielectric functions of different nanocomposites on type of inclusions, and their volume fraction are analyzed. The optical properties of thin nanocomposite films with different distributions of identical spherical inclusions along the film thickness are studied.

show abstract

Plasmonic and Nonlinear Optical Absorption Properties of Ag:ZrO2 Nanocomposite Thin Films

Cited by 74 publications

References 29 publications

Stability-Inspired Entrapment of Ag Nanoparticles in ZrO2 Thin films

Stability-Inspired Entrapment of Ag Nanoparticles in ZrO2 Thin films

Dislocated Double-Layered Metal Gratings: Refractive Index Sensors with High Figure of Merit

Self-Consistent Approach to Calculation of the Optical Response and Absorption Profiles of Thin Nanocomposite Films

Contact Info

Product

Resources

About