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Synthesis of multifunctional plasmonic nanopillar array using soft thermal nanoimprint lithography for highly
Sheng-Chieh Yang1, Ji-Ling Hou, Andreas Finn
1Institute of Semiconductors and Microsystems, Technische Universität Dresden, 01062 Dresden, Germany. sheng-chieh.yang@mailbox.tu-dresden.de.
Nanoscale
|March 11, 2015
Summary
Researchers developed a low-cost plasmonic nanopillar array sensor using soft thermal nanoimprint lithography. This sensor exhibits high sensitivity to changes in the surrounding medium
Area of Science:
- Nanotechnology
- Plasmonics
- Sensor Technology
Background:
- Plasmonic nanostructures offer unique optical properties.
- Developing cost-effective fabrication methods for nanostructures is crucial for practical applications.
Purpose of the Study:
- To synthesize a low-cost plasmonic nanopillar array.
- To characterize its sensitivity to the surrounding medium's refractive index.
Main Methods:
- Soft thermal nanoimprint lithography for nanopillar array synthesis.
- Far-field spectroscopic measurements for sensitivity determination.
Main Results:
- The plasmonic nanopillar array showed high sensitivity to refractive index changes.
- Sensitivity was measured at 375 nm/refractive index unit.
- A sensor with color change based on plasma frequency was fabricated.
Conclusions:
- Soft thermal nanoimprint lithography is a viable method for low-cost plasmonic sensor fabrication.
- The developed sensor demonstrates significant potential for refractive index sensing applications.
