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Plasmonic Absorbers: A Switchable Mid‐Infrared Plasmonic Perfect Absorber with Multispectral Thermal Imaging Capability (Adv. Mater. 31/2015)
Author(s) -
Tittl Andreas,
Michel AnnKatrin U.,
Schäferling Martin,
Yin Xinghui,
Gholipour Behrad,
Cui Long,
Wuttig Matthias,
Taubner Thomas,
Neubrech Frank,
Giessen Harald
Publication year - 2015
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.201570207
Subject(s) - materials science , microbolometer , plasmon , multispectral image , optoelectronics , infrared , optics , germanium , absorption (acoustics) , layer (electronics) , bolometer , nanotechnology , detector , silicon , composite material , physics , computer science , computer vision
On page 4597, A. Tittl and co‐workers present a switchable perfect absorber with multispectral thermal imaging capability. Aluminum nanoantenna arrays above a germanium antimony telluride spacer layer and an aluminum mirror are utilized to achieve efficient and wavelength‐tunable absorption in the mid‐infrared. The image by A. Tittl and D. Floess shows an artist's view of how such switchable absorber layers can be incorporated into a pixelated microbolometer array for band‐selective thermal‐imaging applications.