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How Can You Get Blue Light from a Solid?
Module written by George C. Lisensky, Arthur B. Ellis,
Herbert Beall, Dean J. Campbell, and Joanne Stewart.
Quicktime Movies by G. C. Lisensky and J. M. Blackwell
Session 1: How can you make a solid give off light?
Exploration 1A: How can you make a solid give off light?
Light and heat as energy
Exploration 1B: What is the nature of light?
Exploration 1C: Can you control what colors you get when heating a solid?
Exploration 1D: How can you draw a graph when you have a huge range of
Session 2: Which solid elements can be heated electrically to give off light?
Exploration 2A, Which solid elements can be heated electrically to give
Exploration 2B, How does the electrical conductivity of a material depend
on its shape and temperature?
Exploration 2C, How would you design an incandescent (blackbody emitting) bulb?
The Incandescent Bulb
Why does a light bulb burn out? (http://invsee.eas.asu.edu/nmodules/lightbulbmod/burnout.html)
An incandescent light bulb has been burning for 100 years:
Century Light Bulb (audio), All Things Considered, National Public Radio, June 10, 2001
Live web cam (http://www.centennialbulb.org/cam.htm)
Exploration 2D, How can we represent solids?
Session 3: What pairs of elements will combine to make solids?
Exploration 3A, What controls the properties of elements?
Exploration 3B, What pairs of elements will combine to make solids?
Exploration 3C, How do we know how atoms are arranged on solid surfaces?
Session 4: How can you get light from a solid without heating?
Exploration 4A, How can you get light from atoms?
Electronic Transitions in Atoms
Exploration 4B, How can you get light from a solid without heating?
Electronic Transitions in Solids
LEDs: the Future of Light (http://loe.org/series/LED.php)
Exploration 4C, Are All Red Lights the Same?
LED vs Blackbody Emission
Session 5: How does a CD player work?
Exploration 5A, How does a CD player work?
Constructive and Destructive Interference
Exploration 5B, How do we know how atoms are arranged in solids?
Session 6: How can you get blue light from a solid?
Exploration 6A, How can you get blue light from a solid?
Adjusting Band Gaps
Optional Later Session: Are there equilibria in solids?