2013 Fiscal Year Final Research Report
Fabrication of high-performance devices using imprinting onto chalcogenide glasses
| Project/Area Number |
23760052
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Multi-year Fund |
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| Research Field |
Applied optics/Quantum optical engineering
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| Research Institution | The University of Shiga Prefecture |
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Principal Investigator |
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| Project Period (FY) |
2011 – 2013
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| Keywords | ワイヤグリッド偏光子 / 赤外線 / カルコゲナイドガラス / インプリント加工 |
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| Research Abstract |
A mid-infrared wire-grid polarizer with a 500-nm pitch was fabricated on a low toxic chalcogenide glass (Sb-Ge-Sn-S system) by the thermal imprinting of periodic grating followed by the thermal evaporation of Al metal. After imprinting, deposition of Al on the grating at oblique angle produced a wire-grid polarizer. The fabricated polarizer showed polarization with TM transmittance greater than 60% wavelengths and an extinction ratio greater than 20 dB at 5-9 um wavelengths.
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