Title | Interference-enhanced absorption of visible and near-infrared radiation in ultrathin film coatings |
Publication Type | Journal Article |
Year of Publication | 2021 |
Authors | V. Medvedev, V. Gubarev, E. Zoethout, N.N. Novikova |
Journal | IEEE Photonics Technology Letters |
Volume | 33 |
Issue | 22 |
Pagination | 1242-1245 |
Date Published | 11/2021 |
Abstract | We report the interference-enhanced absorption of electromagnetic radiation in two-layer lossy coatings on metal substrates. The conditions for the complete absorption of monochromatic radiation are described in comparison with those in previously studied single-layer coatings. Proof-of-principle measurements of the interference-enhanced absorption in the near-infrared range are presented for silicon-on-germanium coatings on aluminum substrates. We also provide various examples of materials that can be used to create similar light-absorbing coatings for visible and near-infrared ranges. The proposed design can be applied to optical filters, optoelectronic devices, photodetectors, and light-emitting devices. |
DOI | 10.1109/LPT.2021.3102149 |
Division | MaSF |
Department | SFFI |
PID | 66aa9acbbfeb591bf8ce07b713411e46 |
Alternate Title | IEEE Photon. Technol. Lett. |
Label | OA |
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