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© 1990-2002J.Paul Robinson, Purdue University
BMS 631 – LECTURE005.PPT
Helium-Neon Lasers
•
He-Ne - low power, no
cooling needed
•
Cheap, mostly emit red
light at 633 nm
•
Generally 0.1 W to 50
mW power
•
Lines available
include
green (543nm) and red
633 nm,
594nm or 611
nm.
•
3
rd
. Ed. Shapiro p 110