The concept of a 'coherent perfect absorber' (CPA) as a time-reversed laser is well-known in the domain of non-Hermitian photonics. However, conventional CPAs are usually limited to perfectly absorbing only a single, carefully shaped wavefront (mode'). Apart from the correctly matched input wavefront, all of the possibly many other modes are only weakly absorbed. We have now overcome this limitation by creating a 'massively degenerate coherent perfect absorber' (MAD-CPA) that can absorb any complex input field with near-perfect efficiency.
|Original language||American English|
|Number of pages||2|
|Journal||International Conference on Metamaterials, Photonic Crystals and Plasmonics|
|State||Published - 2023|
|Event||13th International Conference on Metamaterials, Photonic Crystals and Plasmonics, META 2023 - Paris, France|
Duration: 18 Jul 2023 → 21 Jul 2023
Bibliographical notePublisher Copyright:
© 2023, META Conference. All rights reserved.