Perfect interferenceless absorption at infrared frequencies by a van der Waals crystal
| dc.citation.doi | 10.1103/PhysRevB.92.201405 | |
| dc.citation.issn | 1098-0121 | |
| dc.citation.issue | 20 | |
| dc.citation.jtitle | Physical Review B | |
| dc.citation.spage | 6 | |
| dc.citation.volume | 92 | |
| dc.contributor.author | Baranov, D. G. | |
| dc.contributor.author | Edgar, James H. | |
| dc.contributor.author | Hoffman, Timothy B. | |
| dc.contributor.author | Bassim, N. | |
| dc.contributor.author | Caldwell, J. D. | |
| dc.contributor.authoreid | edgarjh | |
| dc.date.accessioned | 2016-04-04T22:20:28Z | |
| dc.date.available | 2016-04-04T22:20:28Z | |
| dc.date.issued | 2015-11-09 | |
| dc.date.published | 2015 | |
| dc.description | Citation: Baranov, D. G., Edgar, J. H., Hoffman, T., Bassim, N., & Caldwell, J. D. (2015). Perfect interferenceless absorption at infrared frequencies by a van der Waals crystal. Physical Review B, 92(20), 6. doi:10.1103/PhysRevB.92.201405 | |
| dc.description | Traditionally, efforts to achieve perfect absorption have required the use of complicated metamaterial-based structures as well as relying on destructive interference to eliminate back reflections. Here, we have demonstrated both theoretically and experimentally that such perfect absorption can be achieved using a naturally occurring material, hexagonal boron nitride (hBN) due to its high optical anisotropy without the requirement of interference effects to absorb the incident field. This effect was observed for p-polarized light within the mid-infrared spectral range, and we provide the full theory describing the origin of the perfect absorption as well as the methodology for achieving this effect with other materials. Furthermore, while this is reported for the uniaxial crystal hBN, this is equally applicable to biaxial crystals and more complicated crystal structures. Interferenceless absorption is of fundamental interest to the field of optics; moreover, such materials may provide additional layers of flexibility in the design of frequency selective surfaces, absorbing coatings, and sensing devices operating in the infrared. | |
| dc.identifier.uri | http://hdl.handle.net/2097/32255 | |
| dc.relation.uri | https://doi.org/10.1103/PhysRevB.92.201405 | |
| dc.rights | This Item is protected by copyright and/or related rights. You are free to use this Item in any way that is permitted by the copyright and related rights legislation that applies to your use. For other uses you need to obtain permission from the rights-holder(s). | |
| dc.rights.uri | https://rightsstatements.org/page/InC/1.0/ | |
| dc.subject | Hexagonal Boron-Nitride | |
| dc.subject | Natural Hyperbolic Material | |
| dc.subject | Interferometric | |
| dc.subject | Control | |
| dc.subject | Optical-Properties | |
| dc.subject | Phonon-Polaritons | |
| dc.title | Perfect interferenceless absorption at infrared frequencies by a van der Waals crystal | |
| dc.type | Article |
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