Growth
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The alternating layers of the two different semiconductors which form the quantum heterostructure may be grown on to a substrate using a variety of methods such as molecular beam epitaxy (MBE), metalorganic vapour phase epitaxy (MOVPE), or metalorganic chemical vapor deposition (MOCVD).
Read more about this topic: Quantum Cascade Laser
Famous quotes containing the word growth:
“Unlimited economic growth has the marvelous quality of stilling discontent while maintaining privilege, a fact that has not gone unnoticed among liberal economists.”
—Noam Chomsky (b. 1928)
“When I have plucked the rose,
I cannot give it vital growth again,
It needs must wither. I’ll smell it on the tree.”
—William Shakespeare (1564–1616)
“The risk for a woman who considers her helpless children her “job” is that the children’s growth toward self-sufficiency may be experienced as a refutation of the mother’s indispensability, and she may unconsciously sabotage their growth as a result.”
—Letty Cottin Pogrebin (20th century)