The Rule of Field Enhancement for Buried Dielectric Layer of SOI High Voltage Devices

2007 ◽  
Author(s):  
Z.J. Li ◽  
B. Zhang ◽  
X.R. Luo ◽  
S.D. Hu ◽  
J. Fang ◽  
...  
Keyword(s):  
High Voltage ◽  
Dielectric Layer ◽  
Field Enhancement

Field Enhancement for Dielectric Layer of High-Voltage Devices on Silicon on Insulator

2009 ◽  
Vol 56 (10) ◽  
pp. 2327-2334 ◽  
Author(s):  
Bo Zhang ◽  
Zhaoji Li ◽  
Shengdong Hu ◽  
Xiaorong Luo
Keyword(s):  
High Voltage ◽  
Dielectric Layer ◽  
Field Enhancement ◽  
Silicon On Insulator

Tuning the Localized Surface Plasmon Resonance of Al-Al2O3 Nanosphere Towards NIR Region by Gold Coating

2020 ◽  
Vol 12 ◽  
Author(s):  
Jyoti Katyal ◽  
Shivani Gautam
Keyword(s):  
Electric Field ◽  
Field Distribution ◽  
Dielectric Layer ◽  
Electric Field Distribution ◽  
Active Material ◽  
Visible Region ◽  
Field Enhancement ◽  
Localized Surface Plasmon ◽  
Sers Substrate ◽  
Al Nanoparticles

Background: A relatively narrow LSPR peak and a strong inter band transition ranging around 800 nm makes Al strongly plasmonic active material. Usually, Al nanoparticles are preferred for UV-plasmonic as the SPR of small size Al nanoparticles locates in deep UV-UV region of the optical spectrum. This paper focused on tuning the LSPR of Al nanostructure towards infrared region by coating Au layer. The proposed structure has Au as outer layer which prevent the further oxidation of Al nanostructure. Methods: The Finite Difference Time Domain (FDTD) and Plasmon Hybridization Theory has been used to evaluated the LSPR and field enhancement of single and dimer Al-Al2O3-Au MDM nanostructure. Results: It is observed that the resonance mode show dependence on the thickness of Al2O3 layer and also on the composition of nanostructure. The Au layered MDM nanostructure shows two peak of equal intensities simultaneously in UV and visible region tuned to NIR region. The extinction spectra and electric field distribution profiles of dimer nanoparticles are compared with monomer to reveal the extent of coupling. The dimer configuration shows higher field enhancement ~107 at 1049 nm. By optimizing the thickness of dielectric layer the MDM nanostructure can be used over UV-visible-NIR region. Conclusion: The LSPR peak shows dependence on the thickness of dielectric layer and also on the composition of nanostructure. It has been observed that optimization of size and thickness of dielectric layer can provide two peaks of equal intensities in UV and Visible region which is advantageous for many applications. The electric field distribution profiles of dimer MDM nanostructure enhanced the field by ~107 in visible and NIR region shows its potential towards SERS substrate. The results of this study will provide valuable information for the optimization of LSPR of Al-Al2O3-Au MDM nanostructure to have high field enhancement.

Total-Ionizing-Dose Irradiation-Induced Dielectric Field Enhancement for High-Voltage SOI LDMOS

2019 ◽  
Vol 40 (4) ◽  
pp. 593-596 ◽  
Author(s):  
Xin Zhou ◽  
Zhangyi'an Yuan ◽  
Lei Shu ◽  
Ming Qiao ◽  
Zhenlin Lu ◽  
...  
Keyword(s):  
High Voltage ◽  
Field Enhancement ◽  
Total Ionizing Dose ◽  
Dose Irradiation

Multilayered Nanostructure for Inducing a Large and Tunable Optical Field

2020 ◽  
Vol 10 (6) ◽  
pp. 840-848
Author(s):  
Jyoti Katyal
Keyword(s):  
Electric Field ◽  
Plasmon Resonance ◽  
Dielectric Layer ◽  
Inner Core ◽  
Strong Field ◽  
Fdtd Method ◽  
Wavelength Region ◽  
Field Enhancement ◽  
Surface Enhanced Raman Spectroscopy ◽  
Localized Surface Plasmon

Objective: The localized surface plasmon resonance (LSPR) and field enhancement of multilayered nanostructure over single and dimer configuration is studied using finite difference time domain (FDTD) method. Experimental: In multilayered nanostructure, there exist concentric nanoshells and metallic core which are separated by a dielectric layer. Strong couplings between the core and nanoshell plasmon resonance modes show a shift in LSPR and enhancement in field around nanostructure. The calculation of the electric field enhancement shows a sharp increase in the electric field on the surface of inner core i.e., inside the dielectric layer of Metal-Dielectric-Metal (MDM) structure whereas smaller enhancement on the outer layer of MDM structure is observed. Results: The Au-Air-Au mono MDM nanostructure shows strong near-field enhancement as compared to bare nanosphere in the infrared region, which have potential applications in surfaceenhanced spectroscopy, whereas Al-Air-Al and Ag-Air-Ag shows potential towards lower wavelength region. On coupling the MDM nanostructure forming a dimer configuration the field enhancement factor increases to 10^8. Conclusion: As compared to other nanostructures, MDM nanostructure provides both strong field enhancement and wide wavelength tunability therefore promising for surface enhanced Raman spectroscopy (SERS) applications.

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