EE 439 Quiz 4 Sept 28, 2009
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Put your final answers on this sheet and attach any additional sheets behind. You must include your work to get full credit. The light coming from a quantum cascade laser has wavelength of 2 m. If we assume that the photo
EE 439 Quiz 5 Nov. 6, 2009
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Put your final answers on this sheet and attach any additional sheets behind. You must include your work to get full credit. A finite-height quantum well has barriers that are 0.5-eV high and a well width of 1 nm. Find the
EE 439 Fall 2009 HW problem 1 Due: Oct. 7, 2009
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a. Starting with Plancks expression for the energy density spectrum inside a black-body cavity
"(# ) =
8$h c3
#3 , % h# ( exp' * + 1 & kT )
derive the Stefan-Boltzmann law for the total energy den
EE 439 Fall 2009 HW problem 2 Due: Oct. 7, 2009
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Light with a wavelength of 200 nm falls on an aluminum surface. The minimum photon energy required to remove an electron from Al is 4.2 eV. What are the kinetic energies of the fastest and slowest
EE 439 Fall 2009 HW problem 43 Due: Oct. 7, 2009
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An electron with energy E is passing over the top of a finite-height quantum well, i.e. E > Uo.
Calculate expressions for the reflection at x = 0 and the transmission past x = L. If Uo = 0.5 eV,
EE 439x Exam 1 Oct.18, 2006
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1. Two-dimensional quantum well A two-dimensional, infinitely deep quantum well is defined by the potential U for x < 0, x > Lx, y < 0, and y > Ly. U = 0 for 0 < x < Lx and 0 < y < Ly. In 2-D, the Schroedinger equation ta
EE 439 Quiz 1 Sept. 18, 2009
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Put your final answers on this sheet and attach any additional sheets behind. You must include your work to get full credit. An electron is fired from an electron gun with energy of 10 eV. The electron is incident on a b
EE 439 Quiz 2 Sept. 21, 2009
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Put your final answers on this sheet and attach any additional sheets behind. You must include your work to get full credit. An proton (mass = 1.67x1027 kg) with energy of 100 eV is incident on a square barrier with ener
EE 439 Quiz 3 Sept 23, 2008
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Put your final answers on this sheet and attach any additional sheets behind. You must include your work to get full credit.
Find the first two energy levels for an electron in an infinitely deep quantum well with width o