SYSTEM FOR ACOUSTIC AND MICROWAVE METAMATERIAL SPECTROSCOPY
Abstract
Support for the purchase and assembly of an acoustic and microwave spectroscopy system. This equipment will support several projects relying on acoustic actuation of structures, often using microwave or radiofrequency stimulus.The proposed experimental apparatus is composed of a Polytec MSA-050 laser vibrometer system that will be used to perform vibrational spectroscopy of acoustic microdevices through a microscope. This system has a removable sensor head that can also perform longer-range vibrational measurements on larger metamaterial structures at the scale of inches to feet with the assistance of a scanning galvanomirror. We will reconfigure the vibrometer and galvanomirror depending on the needs of each project.This vibrometer will be supported by a Keysight E5071C network analyzer that is capable of offset frequency measurements up to 8.5 GHz, which is an essential function that permits the characterization of nonlinear behavior in microwave systems (when used alone) and acoustic systems (when used in conjunction with the vibrometer). The extreme flexibility of this apparatus will enable research with a much greater materials focus than we have been capable of up to now,especially with a direction towards micro- and nano-materials.
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- Jun 13, 2019
- Source ID
- N000141912439
Entities
People
- Gaurav Bahl
Organizations
- Office of Naval Research
- United States Navy
- University of Illinois Urbana–Champaign