2015 BFY II Abstract Detail Page

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Abstract Title: W35 - Noise Fundamentals, SN – Using Shot Noise to find “e” the Charge on the Electron
Abstract: Many instructors, and some students, have heard of Johnson-noise and shot noise in electric circuits, TeachSpin's apparatus provides a way to study both in detail in a trouble-free experimental arena.  Students can see electrical noise, and measure spectral noise density, right from its definition.  In this workshop, participants will make the kind of quantitative measurements of the shot noise present in a photocurrent that can be yield the fundamental charge 'e' to a precision of a few percent.

Participants will:
• Follow a noise signal from birth to quantitative measurement
• Learn how noise density is defined and measured
• Learn how shot noise is generated and measured
• Deduce a value of the fundamental charge 'e'
Abstract Type: Workshop

Author/Organizer Information

Primary Contact: Barbara Wolff-Reichert
and Co-Presenter(s)
Jonathan Reichert, George Herold, David Van Baak, TeachSpin

Workshop Documents

Workshop Doc 1: Download the Workshop Doc 1
Workshop Doc 2: Download the Workshop Doc 2