Femtosecond optical nonlinearity of Au nanoparticles under their excitation in nonresonant relative to surface plasmon conditions

Brodyn, M. S.; Lyakhovetsky, V.; Rudenko, V. I.; Styopkin, V. I.

doi:10.1007/s00340-013-5374-9

Cited by 5 publications

(1 citation statement)

References 17 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…For example, CoFe-Al 2 O 3 granular films, which are similar to our Co-Al 2 O 3 granular films, were coevaporated using -beam evaporation for studies of IR reflectance and magnetorefractive effects [11]. Recently, some kinds of nanomaterials for the magnetic photonics or plasmonic resonance studies were fabricated using different techniques, such as sol-gel method for magnetic photonic crystals based on Fe 3 O 4 nanoparticles [12], spray pyrolysis technique for Au nanoclusters embedded in titania (TiO 2 ) matrix [13], and thermal evaporation method and then annealed at high temperature for Au nanoparticles [14], and so forth. Based on those studies, we were motivated to prepare Al 2 O 3 matrix-based Co-cermet MGF materials using cosputtering technique.…”

Section: Introductionmentioning

confidence: 99%

Structural Characteristics and Magnetic Properties of Al₂O₃ Matrix-Based Co-Cermet Nanogranular Films

Cuong

Tuấn

Anh

et al. 2015

Journal of Materials

View full text Add to dashboard Cite

Magnetic micro-and nanogranular materials prepared by different methods have been used widely in studies of magnetooptical response. However, among them there seems to be nothing about magnetic nanogranular thin films prepared by a cosputtering technique for both metals and insulators till now. This paper presented and discussed preparation, structural characteristics, and magnetic properties of alumina (Al 2 O 3 ) matrix-based granular Co-cermet thin films deposited by means of the cosputtering technique for both Co and Al 2 O 3 . By varying the ferromagnetic (Co) atomic fraction, , from 0.04 to 0.63, several dominant features of deposition for these thin films were shown. Structural characteristics by X-ray diffraction confirmed a cermet-type structure for these films. Furthermore, magnetic behaviours presented a transition from paramagnetic-to superparamagnetic-and then to ferromagnetic-like properties, indicating agglomeration and growth following Co components of Co clusters or nanoparticles. These results show a typical granular Co-cermet feature for the Co-Al 2 O 3 thin films prepared, in which Co magnetic nanogranules are dispersed in a ceramic matrix. Such nanomaterials can be applied suitably for our investigations in future on the magnetooptical responses of spinplasmonics.

show abstract

Section: Introductionmentioning

confidence: 99%

Structural Characteristics and Magnetic Properties of Al₂O₃ Matrix-Based Co-Cermet Nanogranular Films

Cuong

Tuấn

Anh

et al. 2015

Journal of Materials

View full text Add to dashboard Cite

show abstract

Faster nonlinear optical response in liquid crystal cells containing gold nano-island films

et al. 2020

View full text Add to dashboard Cite

Surface plasmon enhanced third-order optical nonlinearity of Ag nanocomposite film

Singh¹,

Aghamkar

2014

Applied Physics Letters

View full text Add to dashboard Cite

We obtain a large third-order optical nonlinearity (χ(3) ≈ 10−10esu) of silver nanoparticles dispersed in polyvinyl alcohol/tetraethyl orthosilicate matrix using single beam z-scan technique at 532 nm by Q-switched Nd:YAG laser. We have shown that mechanisms responsible for third-order optical nonlinearity of Ag nanocomposite film are reverse saturable absorption (RSA) and self-defocusing in the purlieu of surface plasmon resonance (SPR). Optical band-gap and width of SPR band of Ag nanocomposite film decrease with increasing silver concentration, which leads to enhancement of local electric field and hence third-order optical nonlinearity. Optical limiting, due to RSA has also been demonstrated at 532 nm.

show abstract

Femtosecond optical nonlinearity of Au nanoparticles under their excitation in nonresonant relative to surface plasmon conditions

Cited by 5 publications

References 17 publications

Structural Characteristics and Magnetic Properties of Al₂O₃ Matrix-Based Co-Cermet Nanogranular Films

Structural Characteristics and Magnetic Properties of Al₂O₃ Matrix-Based Co-Cermet Nanogranular Films

Faster nonlinear optical response in liquid crystal cells containing gold nano-island films

Surface plasmon enhanced third-order optical nonlinearity of Ag nanocomposite film

Contact Info

Product

Resources

About

Femtosecond optical nonlinearity of Au nanoparticles under their excitation in nonresonant relative to surface plasmon conditions

Cited by 5 publications

References 17 publications

Structural Characteristics and Magnetic Properties of Al2O3 Matrix-Based Co-Cermet Nanogranular Films

Structural Characteristics and Magnetic Properties of Al2O3 Matrix-Based Co-Cermet Nanogranular Films

Faster nonlinear optical response in liquid crystal cells containing gold nano-island films

Surface plasmon enhanced third-order optical nonlinearity of Ag nanocomposite film

Contact Info

Product

Resources

About

Structural Characteristics and Magnetic Properties of Al₂O₃ Matrix-Based Co-Cermet Nanogranular Films

Structural Characteristics and Magnetic Properties of Al₂O₃ Matrix-Based Co-Cermet Nanogranular Films