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IMG Seminar: Haocheng Zhou and Dingkang Wang

Submitted by Nicolas Garraud on Thu, 03/22/2018 - 3:56pm
Event date: 
Fri, 03/23/2018 - 11:45am to 12:45pm

This week, the speakers for the IMG Seminar are:

  •  Haocheng Zhou (Dr. Sheplak's group) on MEMS-Based Five-Hole Probe with Optical Pressure Transducers
  •  Dingkang Wang (Dr. Xie's group) on  Integrated Forward-View 2-Axis MEMS Scanner for Compact 3D Lidar

MEMS-Based Five-Hole Probe with Optical Pressure Transducers. This project focuses on a MEMS-based 5HP capable of measuring the localized velocity vector and the static&dynamic pressure in a flow field. By packaging multiple fiber-optic lever MEMS pressure sensors at the probe tip, this new device greatly reduces the settling time and offers higher bandwidth compared to traditional pneumatic 5HP. This talk is mainly about the fabrication process of five pressure transducers on a single die, the probe's hemispheric tip with ~100 µm (OD) holes on the tip surface, and the multi-fiber ferrule for optical packaging. 

Integrated Forward-View 2-Axis MEMS Scanner for Compact 3D Lidar. This project target at the integrated MEMS Scanner for MAV(Micro-air vehicles). The two vertically oriented mirror make forward view scan easy without difficult optical alignment. The weight of this MEMS scanner is only 20 mg, make it possible to be carried by MAV.

IMG Seminar: Dr. Alexandra Garraud and Todd Schumann

Submitted by Renuka Bowrothu on Wed, 01/24/2018 - 3:58pm
Event date: 
Fri, 01/26/2018 - 11:45am

This week, the speakers for the IMG Seminar are:

11:55-12:20 pm: Dr. Alexandra Garraud on "Extending the range of wireless power transmission for bio-implants and wearables" 

12:20-12:45 pm: Todd Schumann  on "Solely calcine controlled ferroelectric/memristor behavior in barium titanate"

 

IMG Seminar: Dr. Roozbeh Tabrizian and Mehrdad Ramezani

Submitted by Renuka Bowrothu on Tue, 11/28/2017 - 3:18pm
Event date: 
Fri, 12/01/2017 - 11:45am

The speakers of this week's IMG seminar are

  • Dr. Roozbeh Tabrizian on Linear or Nonlinear Nano-Acoustic Signal Processors for 5G Wireless Communication - One problem, two approaches,
  • Mehrdad Ramezani, from Dr. Tabrizian's group, on High-Q Silicon Fin Bulk Acoustic Resonators for Signal Processing Beyond the UHF.

IMG Seminar: Plate Mechanical Metamaterials- The Thinnest Plates you can Pick Up by Hand

Submitted by Renuka Bowrothu on Thu, 11/02/2017 - 1:21pm
Event date: 
Fri, 11/03/2017 - 11:45am to 12:45pm

Professor Igor Bargatin from the University of Pennsylvania (UPenn), will be giving an interesting talk on development of novel meta-materials for Nano-Systems applications.  

Recently, they have demonstrated a new class of ultra-lightweight plate-shaped mechanical metamaterials. Using a periodic three-dimensional corrugation, they have fabricated free-standing plates up to a few cm in size out of aluminum oxide (alumina) films as thin as 25 nm. Weighing as little as 0.1 gram per square meter, they are among the thinnest and lightest free-standing solids that can be handled with bare hands. Like the nanotruss mechanical metamaterials reported by other groups, plate mechanical metamaterials are extremely lightweight and resilient due to their nanoscale thickness and microscale cellular structure. Ultralow weight, mechanical robustness, thermal insulation, as well as chemical and thermal stability of alumina make plate metamaterials attractive for numerous applications, including microflyers, high-temperature heat-to-electricity energy converters, as well as and hollow MEMS/NEMS resonators.

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IMG Kickoff Meeting

Submitted by Todd Schumann on Thu, 08/03/2017 - 10:03am
Event date: 
Fri, 08/18/2017 - 11:45am to 1:30pm

Welcome back from a great summer IMG members!

As the Fall semester moves closer, we will be having our IMG Kickoff Meeting on August 18, 2017 from 11:45AM to 1:30PM. During this meeting, we'll cover all manner of IMG topics and introduce new members to the group. We will also be taking our group photo, so if you have a IMG polo or t-shirt, feel free to wear it.

Please note, all IMG members are expected to attend this meeting! Pizza and drinks will be provided as well!

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