What is done to create an extrinsic semiconductor?
A) refractive index is decreased
B) doping the material with impurities
C) increase the band-gap of the material
D) stimulated emission
Correct Answer:
Verified
Q13: In Fabry-perot laser, the lower threshold is
Q14: When did the non-semiconductor laser developed?
A)1892
B)1946
C)1985
D)1993
Q15: Y3Al5 O12 Is a molecular formula for _
A)ytterbium aluminate
B)yttrium
Q16: A perfect semiconductor crystal containing no impurities
Q17: The energy-level occupation for a semiconductor in
Q19: _ is used when the optical emission
Q20: In the given equation, what does p
Q21: Calculate the radioactive minority carrier lifetime in
Q22: Which impurity is added to gallium phosphide
Q23: Population inversion is obtained at a p-n
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