Microscale IR spectroscopy enabled by phase change materials and metasurfaces
Courtesy of SUTD
Researchers from the Singapore University of Technology and Design (SUTD) in collaboration with Dalian University of Technology (DUT) and the Singapore Synchrotron Light Source (SSLS), have demonstrated that tuneable phase change materials, which are more typically found in data storage devices, can be used to tune the response of microscale infrared transmissive "metasurface" filters. The filters can be tuned across the broad band of frequencies in the mid-infrared spectrum where many pollutant gasses vibrate.
SUTD lead researcher, Assistant Prof Robert Simpson said: "These infrared filters are so small that they can be incorporated into a smart phone. This would allow you to measure the quality of the oil that has been used to fry your food, measure the air that you breathe, or to measure fluids that are expelled from your body to check the condition of your health."
Original publication
Weiling Dong, Yimei Qiu, Xilin Zhou, Agnieszka Banas, Krzysztof Banas, Mark B. H. Breese, Tun Cao, Robert E. Simpson; "Tunable Mid‐Infrared Phase‐Change Metasurface"; Advanced Opticla Materials; 2018
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Topic World Spectroscopy
Investigation with spectroscopy gives us unique insights into the composition and structure of materials. From UV-Vis spectroscopy to infrared and Raman spectroscopy to fluorescence and atomic absorption spectroscopy, spectroscopy offers us a wide range of analytical techniques to precisely characterize substances. Immerse yourself in the fascinating world of spectroscopy!
Topic World Spectroscopy
Investigation with spectroscopy gives us unique insights into the composition and structure of materials. From UV-Vis spectroscopy to infrared and Raman spectroscopy to fluorescence and atomic absorption spectroscopy, spectroscopy offers us a wide range of analytical techniques to precisely characterize substances. Immerse yourself in the fascinating world of spectroscopy!