Organic Semiconductor Lasers and Optical Amplifiers
Lecture Note - QMMRC
Lecture Note - QMMRC
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Measuring Gain 1:<br />
Transient Absorption<br />
Chopper Excitation<br />
∆T/T<br />
Probe<br />
<strong>Optical</strong> delay<br />
Sample<br />
Detector<br />
►Excite sample with short laser pulse<br />
►Measure change in transmission with time-delayed probe<br />
►Gain (if present) will increase in transmission
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