TiN Nanoparticles for Enhanced THz Generation in TDS Systems |
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| Authors: | Oday Abdulmunem Khaleel Hassoon Mahmoud Gaafar Arash Rahimi-Iman Jan C Balzer |
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| Affiliation: | 1.Department of Physics and Materials Sciences Center,Philipps-Universit?t Marburg,Marburg,Germany;2.Department of Physics, Faculty of Science,Al-Mustansiriya University,Baghdad,Iraq;3.Institute of Optical and Electronic Materials,Hamburg University of Technology,Hamburg,Germany;4.Department of Physics, Faculty of Science,Menoufia University,Menoufia,Egypt |
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| Abstract: | By virtue of the surface plasmon resonance effect, plasmonic nanoparticles (NPs) can localize the light field and significantly enhance the performance of some optoelectronic devices. In this work, NPs are employed for an enhanced generation of terahertz radiation from LT-GaAs-based antennas. Therefore, we have prepared plasmonic TiN NPs by direct ultrasonication (ULS) and pulsed laser ablation (PLA) techniques. The zeta potential, particle size, and absorbance were used to characterize the NPs in their colloidal forms in a comparison to commercial Au NPs. A layer of polydispersed titanium nitride (TiN) NPs prepared by PLA and deposited on the surface of an LT-GaAs device shows a significant improvement of terahertz signal generation from these devices with an enhancement of the peak to peak amplitude of 100%. |
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