Astronomy 512 -- Spring 2006 -- Assignment 5 -- Due Tuesday Apr 18

  1. In the Infrared Laboratory you will find a single InSb photodiode packaged inside an LN2 cryostat. You need to do the following:

    Individual problems

  2. Consider an 0.5mm diameter intrinsic semiconductor photoconductor made of Germanium. Assume the detector operates at a bias of 50mV (See (better yet read) Rieke Chapter 2).

  3. Suppose the germanium detector above is doped with Gallium with an acceptor concentration of 5.0x1014.