DataVXAdvanced Materials TechnologiesPaper
journal article·2024-11Open access

Realizing the High Efficiency of Type‐II Superlattice Infrared Sensors Integrated Wire‐Grid Polarizer via Femtosecond Laser Polishing (Adv. Mater. Technol. 22/2024)

Hyesu Kim, Jiyeon Jeon, Junhee Jo, Byong Sun Chun, Sang Jun Lee, Won Seok Chang

Advanced Materials Technologies· Volume 9· Issue 22
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Source abstract

Abstract

Type-II Superlattice Infrared Sensors In article number 2400374, Sang Jun Lee, Won Seok Chang, and co-workers fabricate a type-II superlattice mid-wavelength infrared photodetector, seamlessly integrated with a nanostructured wire grid polarizer using nanoimprint lithography. The surface of the wire grid polarizer is polished with femtosecond pulse laser, which dramatically reduces optical losses while maximizing polarization efficiency, known as the extinction ratio. This breakthrough paves the way for next-generation high-performance infrared imaging systems, revolutionizing MWIR detection with unprecedented capabilities.
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Research context

Nanomaterials

OpenAlex topics: Laser Material Processing Techniques · Optical Systems and Laser Technology · Laser and Thermal Forming Techniques

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Affiliations

Nano‐convergence Manufacturing Research Division Korea Institute of Machinery and Materials (KIMM) Daejeon 34103 South Korea

Department of Nanomechatronics University of Science and Technology (UST) Daejeon 34113 Republic of Korea

Semiconductor and Display Metrology Group Korea Research Institute of Standards and Science (KRISS) Daejeon 34113 Republic of Korea

Department of Nano Convergence Measurement University of Science and Technology (UST) Daejeon 34113 Republic of Korea

References

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