Engineering & Materials Science
Semiconductor quantum wells
89%
Excited states
63%
Phonons
59%
Infrared radiation
49%
Scattering
35%
Acoustics
31%
Free electron lasers
29%
Pumps
29%
Ground state
28%
Relaxation processes
28%
Relaxation time
24%
Temperature
22%
Light sources
20%
Conservation
18%
Impurities
18%
Semiconductor materials
16%
Physics & Astronomy
quantum wells
44%
life (durability)
38%
pumps
27%
phonons
25%
probes
22%
picosecond pulses
22%
acoustics
21%
scattering
19%
free electron lasers
19%
excitation
18%
conservation
17%
periodic variations
17%
temperature
16%
relaxation time
15%
ground state
12%
impurities
12%
energy
5%
Chemistry
Acoustic Phonon
100%
Excited State
45%
Free Electron
36%
Superlattice
29%
Ground State
22%
Semiconductor
21%
Energy
13%
Time
10%