Use of a conical axicon as a surface acoustic wave focusing device
buir.contributor.author | Atalar, Abdullah | |
buir.contributor.author | Köymen, Hayrettin | |
buir.contributor.orcid | Atalar, Abdullah|0000-0002-1903-1240 | |
dc.citation.epage | 63 | en_US |
dc.citation.issueNumber | 1 | en_US |
dc.citation.spage | 53 | en_US |
dc.citation.volumeNumber | 34 | en_US |
dc.contributor.author | Atalar, Abdullah | en_US |
dc.contributor.author | Köymen, Hayrettin | en_US |
dc.date.accessioned | 2019-03-28T06:33:19Z | |
dc.date.available | 2019-03-28T06:33:19Z | |
dc.date.issued | 1987-01 | en_US |
dc.department | Department of Electrical and Electronics Engineering | en_US |
dc.description.abstract | Ultrasonic axicons generate waves which focus on a line. They are used in various imaging applications as hulk wave focusing devices with a very long depth of focus. A new type of conical axicon is introduced. It consists of a concave parabolic surface immersed in a liquid medium and insonified obliquely by wavefronts generated by a plane transducer. The parabolic cylinder can be approximated by a portion of a circular cylinder without losing significantly in the focusing performance of the axicon. It is also shown that conical axicons can be used to excite surface waves provided that the cone angle of the axicon coincides with the Rayleigh critical angle of the liquid-solid interface. The generated surface waves focus into a diffraction-limited spot. This new surface wave focusing scheme is easy to use and has a conversion efficiency and sensitivity far better than other existing techniques. | en_US |
dc.description.provenance | Submitted by Taner Korkmaz (tanerkorkmaz@bilkent.edu.tr) on 2019-03-28T06:33:19Z No. of bitstreams: 1 Use_of_a_conical_axicon_as_a_surface_acoustic_wave_focusing_device.pdf: 1051008 bytes, checksum: f45f8887ee3222ec3b284a16daf5021b (MD5) | en |
dc.description.provenance | Made available in DSpace on 2019-03-28T06:33:19Z (GMT). No. of bitstreams: 1 Use_of_a_conical_axicon_as_a_surface_acoustic_wave_focusing_device.pdf: 1051008 bytes, checksum: f45f8887ee3222ec3b284a16daf5021b (MD5) Previous issue date: 1987-01 | en |
dc.identifier.doi | 10.1109/T-UFFC.1987.26911 | en_US |
dc.identifier.eissn | 1525-8955 | |
dc.identifier.issn | 0885-3010 | |
dc.identifier.uri | http://hdl.handle.net/11693/50774 | |
dc.language.iso | English | en_US |
dc.publisher | IEEE | en_US |
dc.relation.isversionof | https://doi.org/10.1109/T-UFFC.1987.26911 | en_US |
dc.source.title | IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control | en_US |
dc.subject | Surface acoustic wave devices | en_US |
dc.subject | Acoustic waves | en_US |
dc.subject | Surface acoustic waves | en_US |
dc.subject | Focusing | en_US |
dc.subject | Acoustic transducers | en_US |
dc.subject | Surface waves | en_US |
dc.subject | Image converters | en_US |
dc.subject | Lenses | en_US |
dc.subject | Surface cracks | en_US |
dc.subject | Acoustic signal detection | en_US |
dc.title | Use of a conical axicon as a surface acoustic wave focusing device | en_US |
dc.type | Article | en_US |
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