Phononic crystal devices

El-Kady, Ihab F; Olsson, Roy H

Phononic crystal devices

Patent · Tue Jan 10 04:00:00 EST 2012

OSTI ID:1035041

El-Kady, Ihab F ^[1]; Olsson, Roy H ^[1]

Albuquerque, NM

Phononic crystals that have the ability to modify and control the thermal black body phonon distribution and the phonon component of heat transport in a solid. In particular, the thermal conductivity and heat capacity can be modified by altering the phonon density of states in a phononic crystal. The present invention is directed to phononic crystal devices and materials such as radio frequency (RF) tags powered from ambient heat, dielectrics with extremely low thermal conductivity, thermoelectric materials with a higher ratio of electrical-to-thermal conductivity, materials with phononically engineered heat capacity, phononic crystal waveguides that enable accelerated cooling, and a variety of low temperature application devices.

Research Organization:: Sandia National Laboratories

Sponsoring Organization:: USDOE

DOE Contract Number:: AC04-94AL85000

Assignee:: Sandia Corporation (Albuquerque, NM)

Patent Number(s):: 8,094,023

Application Number:: 12/394,831

OSTI ID:: 1035041

Country of Publication:: United States

Language:: English

References (6)

Phononic band-gap crystals for radio frequency communications El-Kady, I.; Olsson, R. H.; Fleming, J. G. Applied Physics Letters, Vol. 92, Issue 23 https://doi.org/10.1063/1.2938863	journal	June 2008
A bulk micromachined silicon thermopile with high sensitivity Allison, S. C.; Smith, R. L.; Howard, D. W. Sensors and Actuators A: Physical, Vol. 104, Issue 1 https://doi.org/10.1016/S0924-4247(02)00478-8	journal	March 2003
Feedback-controlled ion beam sculpting apparatus Stein, Derek M.; McMullan, Ciaran J.; Li, Jiali Review of Scientific Instruments, Vol. 75, Issue 4 https://doi.org/10.1063/1.1666986	journal	April 2004
Ion-beam sculpting at nanometre length scales Li, Jiali; Stein, Derek; McMullan, Ciaran Nature, Vol. 412, Issue 6843, p. 166-169 https://doi.org/10.1038/35084037	journal	July 2001
Microfabricated phononic crystal devices and applications Olsson III, R. H.; El-Kady, I. Measurement Science and Technology, Vol. 20, Issue 1 https://doi.org/10.1088/0957-0233/20/1/012002	journal	November 2008
Microfabricated VHF acoustic crystals and waveguides Olsson, Roy H.; El-Kady, Ihab F.; Su, Mehmet F. Sensors and Actuators A: Physical, Vol. 145-146 https://doi.org/10.1016/j.sna.2007.10.081	journal	July 2008

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