Now showing items 15-16 of 16

    • RayTrace 

      Walker, Thad G. (1998-03-13)
      This applet traces paraxial light rays through a user-specified system of up to 12 ideal thin lenses and apertures, allowing many simple optical instruments to be modelled. Three examples are given: coupling of light from ...
    • Ultrasensitive Atomic Magnetometers 

      Wyllie, Robert; Wakai, Ronald T.; Walker, Thad G. (2009-09-10)
      We have developed a novel, small-volume portable single-channel atomic biomagnetometer and have used it to detect adult MCG signals. The cryogenic-free magnetometer has sufficiently high sensitivity (20 fT/rt(Hz)) that ...