NASA Jet Propulsion Laboratory California Institute of Technology JPL Home Earth Solar System Stars & Galaxies Science & Technology Bring the Universe to You JPL Email News RSS Podcast Video
Follow this link to skip to the main content

Home
Research
Opportunities
Community
News and Events
Announcements
News Board
Seminars
ST icon
Office of the Chief Scientist and Chief Technologist
News and Events

Seminars

Average Rating: 2 / 5 (4 ratings)
  •   star rating help
    How Do I Rate This?
    The blue stars show the average user rating for this item. To add your own rating, move your cursor over the stars to highlight them in gold, and click to show your rating. One star highlighted is the lowest rating, all five is the highest. Once you have rated an item, your rating is added to the average.
Kavli Nanoscience Institute / Microdevices Lab seminar
Kavli Nanoscience Institute / Microdevices Lab seminar

Date: Monday, March 1, 2010
Time: 4:00 PM
Location: 125 Steele, Caltech
Speaker: Pierre Echternach, JPL and Matt Shaw, Caltech


Caltech applied physics postdoctoral scholar Shaw will discuss approaching the quantum regime in nano-electro-mechanical systems, and tools and techniques for quantum state preparation and measurement in nanomechanical oscillators. Nano-electro-mechanical systems (NEMS) offer a unique opportunity to investigate quantum mechanical effects in macroscopic devices. He will review recent progress by the Schwab group in developing tools to prepare and measure cold mechanical states of a macroscopic oscillator coupled to a superconducting microwave resonator. He demonstrates cavity-assisted sideband cooling into a regime near the ground state of motion, and a back-action-evasion measurement technique with sensitivity approaching the standard quantum limit. It is anticipated that these techniques can be used in the near future to generate and observe nonclassical states in macroscopic mechanical systems.

Echternach, a JPL senior microdevices engineer, will introduce the Quantum Capacitance Detector, a concept for a pair-breaking photodetector for far-infrared and submillimeter radiation in which antenna-coupled radiation generates quasiparticles in a superconducting absorber, the density of which is measured using a single Cooper-pair box. He will discuss preliminary electrical NEP measurements made by direct quasiparticle injection and optical characterization of an antenna coupled device.

Light refreshments will be served after the seminar, which is part of a monthly series sponsored by Caltech’s Kavli Nanoscience Institute and JPL's Microdevices Lab.

Site Manager:  Brian Knosp
Webmasters:  Cornell Lewis, Maryia Davis

JPL Clearance:  CL#08-4147