Modulation of coherent transient effects by heterodyne fields in stark and frequency switching
Thesis/Dissertation
·
OSTI ID:6752173
Coherent transient effects are the optical analogs of the many transient phenomena seen in pulsed nuclear magnetic resonance experiments on spin systems. For example, photon-echo and optical nutation are the respective optical equivalents of spin echo and transient nutation of nuclear magnetic resonance. In Stark-switching and frequency-switching techniques the laser field and the molecules are brought into resonance in a sequence of pulses, the rest of the time they remain well off-resonance. So far it has been assumed that the off-resonance field does not have any measurable influence on the experimental results and is utilized to implement a very efficient detection scheme. This work discusses how the off-resonance field affects the coherent transient effects. It is shown here how this field, by inducing changes in the index of refraction as small as 10/sup -6/ produces easily observable effects in photon echo and delayed optical nutation.
- Research Organization:
- Arizona Univ., Tucson (USA)
- OSTI ID:
- 6752173
- Country of Publication:
- United States
- Language:
- English
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