Lecture 8: Laser amplifiers
Lecture 8: Laser amplifiers
Lecture 8: Laser amplifiers
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Planck’s law of blackbody radiation<br />
180<br />
Radiation energy density u() (JHz ‐1 m ‐3 )<br />
160<br />
140<br />
120<br />
100<br />
80<br />
60<br />
40<br />
20<br />
0<br />
1500 K<br />
1000 K<br />
0 5E+13 1E+14 1.5E+14 2E+14 2.5E+14 3E+14 3.5E+14<br />
Frequency (Hz)<br />
25<br />
25