E-resources
Peer reviewed
-
Xia, Baizhan; Fan, Haiyan; Liu, Tingting
International journal of mechanical sciences, 20/May , Volume: 155Journal Article
•A phoxonic crystal which simultaneously exhibit the topological states of sound and light.•The single and double Dirac cones could be respectively degenerated by different impedance ratio.•The topological spin-dependent edge states of sound are induced.•The topologically valley spin state of the TM mode is excited.•The edge state of the TE mode is realized.•A platform to design the topological optomechanical devices. In this paper, we designed a phoxonic crystal (PxC) which simultaneously exhibit the topological states of sound and light. By modulating the impedance ratio between the cylinder scatterers and the matrix in a honeycomb lattice, we found that the inevitable Dirac cones and the accidental double Dirac cone of the phononic mode could be respectively degenerated at the corner and center of the Brillouin zone (BZ). For the photonic mode, we can find that the transverse-magnetic (TM) bands degenerate to Dirac cones at the corner of the BZ and the transverse-electric (TE) bands degenerate to a position-varying Dirac cone along the M-Γ line of the BZ. When the point group symmetry of the PxC is reduced from C6v to C3v, the double Dirac cone of the phononic mode is lifted and the topological pseudospin-dependent edge states of sound are induced when we construct a ribbon-shaped supercell with zigzag interface. Under the same operation, the topological valley spin state of the TM mode is excited and the edge state of the TE mode is also realized at the same time. Based on the all full-wave simulations, we simultaneously observed the topologically protected edge propagations of sound and light along the interfaces of two PxCs with the distinct topological phases. Our PxC provides a platform to design the topological optomechanical devices. Display omitted
![loading ... loading ...](themes/default/img/ajax-loading.gif)
Shelf entry
Permalink
- URL:
Impact factor
Access to the JCR database is permitted only to users from Slovenia. Your current IP address is not on the list of IP addresses with access permission, and authentication with the relevant AAI accout is required.
Year | Impact factor | Edition | Category | Classification | ||||
---|---|---|---|---|---|---|---|---|
JCR | SNIP | JCR | SNIP | JCR | SNIP | JCR | SNIP |
Select the library membership card:
If the library membership card is not in the list,
add a new one.
DRS, in which the journal is indexed
Database name | Field | Year |
---|
Links to authors' personal bibliographies | Links to information on researchers in the SICRIS system |
---|
Source: Personal bibliographies
and: SICRIS
The material is available in full text. If you wish to order the material anyway, click the Continue button.