2015/02/18 by Yabin Jin, Jin, Yabin, Daniel Torrent +8
Engineering · Physics and Astronomy · #Advanced Fiber Laser Technologies #Classical Physics (physics.class-ph) #Computer science #Environmental science #FOS: Physical sciences #Gyrotron and Vacuum Electronics Research #Index (typography) #Laser Design and Applications #Optics (physics.optics) #World Wide Web #physics.class-ph #physics.optics
paper · pdf · doi:10.48550/arxiv.1502.05423
published in arXiv (Cornell University) (Cornell University)
arxiv created 2015/02/18 · openalex publication_date 2015/02/18 · arxiv updated 2015/02/20 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
Gradient index devices for the simultaneous control of the S 0 and A 0 Lamb modes are presented and numerically analysed. It is found a special relationship between the refractive indexes for these two modes which allows their simultaneous control by means of graded phononic crystals and thickness variations of the plate. A flat gradient index lens and a circular Luneburg lens are designed. Numerical simulations show that the performance of these devices is good for the two modes in a broadband frequency region, and that this approach can be used to design more advanced refractive devices for the total control of guided vibrational modes.