skip to main content

DOE PAGESDOE PAGES

This content will become publicly available on March 5, 2019

Title: Acoustic waveguiding in a silicon carbide phononic crystals at microwave frequencies

Two dimensional SiC–air phononic crystals have been modeled, fabricated, and tested with a measured bandgap ranging from 665 to 693 MHz. Snowflake air inclusions on a hexagonal lattice were used for the phononic crystal. By manipulating the phononic crystal lattice and inserting circular inclusions, a waveguide was created at 680 MHz. The combined insertion loss and propagation loss for the waveguide is 8.2 dB, i.e., 39% of the energy is guided due to the high level of the confinement afforded by the phononic crystal. In conclusion, the SiC–air phononic crystals and waveguides were fabricated using a CMOS-compatible process, which allows for seamless integration of these devices into wireless communication systems operating at microwave frequencies.
Authors:
ORCiD logo [1] ;  [2] ;  [2] ;  [2] ;  [3]
  1. Univ. of Jamestown, Jamestown, ND (United States)
  2. Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
  3. Kansas State Univ., Manhattan, KS (United States)
Publication Date:
Report Number(s):
SAND-2018-10596J
Journal ID: ISSN 0003-6951; 668175
Grant/Contract Number:
AC04-94AL85000
Type:
Accepted Manuscript
Journal Name:
Applied Physics Letters
Additional Journal Information:
Journal Volume: 112; Journal Issue: 10; Journal ID: ISSN 0003-6951
Publisher:
American Institute of Physics (AIP)
Research Org:
Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
Sponsoring Org:
USDOE National Nuclear Security Administration (NNSA)
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING
OSTI Identifier:
1476935

Baboly, M. Ghasemi, Reinke, Charles M., Griffin, Benjamin A., El-Kady, Ihab F., and Leseman, Z. C.. Acoustic waveguiding in a silicon carbide phononic crystals at microwave frequencies. United States: N. p., Web. doi:10.1063/1.5016380.
Baboly, M. Ghasemi, Reinke, Charles M., Griffin, Benjamin A., El-Kady, Ihab F., & Leseman, Z. C.. Acoustic waveguiding in a silicon carbide phononic crystals at microwave frequencies. United States. doi:10.1063/1.5016380.
Baboly, M. Ghasemi, Reinke, Charles M., Griffin, Benjamin A., El-Kady, Ihab F., and Leseman, Z. C.. 2018. "Acoustic waveguiding in a silicon carbide phononic crystals at microwave frequencies". United States. doi:10.1063/1.5016380.
@article{osti_1476935,
title = {Acoustic waveguiding in a silicon carbide phononic crystals at microwave frequencies},
author = {Baboly, M. Ghasemi and Reinke, Charles M. and Griffin, Benjamin A. and El-Kady, Ihab F. and Leseman, Z. C.},
abstractNote = {Two dimensional SiC–air phononic crystals have been modeled, fabricated, and tested with a measured bandgap ranging from 665 to 693 MHz. Snowflake air inclusions on a hexagonal lattice were used for the phononic crystal. By manipulating the phononic crystal lattice and inserting circular inclusions, a waveguide was created at 680 MHz. The combined insertion loss and propagation loss for the waveguide is 8.2 dB, i.e., 39% of the energy is guided due to the high level of the confinement afforded by the phononic crystal. In conclusion, the SiC–air phononic crystals and waveguides were fabricated using a CMOS-compatible process, which allows for seamless integration of these devices into wireless communication systems operating at microwave frequencies.},
doi = {10.1063/1.5016380},
journal = {Applied Physics Letters},
number = 10,
volume = 112,
place = {United States},
year = {2018},
month = {3}
}

Works referenced in this record:

A picogram- and nanometre-scale photonic-crystal optomechanical cavity
journal, May 2009
  • Eichenfield, Matt; Camacho, Ryan; Chan, Jasper
  • Nature, Vol. 459, Issue 7246, p. 550-555
  • DOI: 10.1038/nature08061