Other

Martti Juhani Blomberg

Ari Lehto

Altti Kaleva Torkkeli

The invention relates to a structure suitable for manufacturing by the fabrication techniques of micro-electronics so as to include an optically black surface that functions as an absorber or emitter, respectively, over a predetermined wavelength range, the structure includes a electrically nonconducting support layer (,), a metallic mirror layer (,) made on the support layer (,), and a lossy layer (,) made on the support layer (,) and the metallic mirror layer (,) superimposed thereon. According to the invention, the mirror layer (,) is made on the upper surface of the support layer (,) and the lossy layer (,) is made from a doped semiconductor material. The thickness of the multilayer structure (,) and the doping of the lossy layer (,) are predetermined relative to each other so that the mirror layer (,) will be optically matched over the predetermined wavelength range of absorption or emission, respectively, to the medium surrounding the structure. The invention also concerns a method for manufacturing the surfaces.

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Vantaa, Finland

Martti Juhani Blomberg