Abstract
We calculated the group velocity of a probe pulse located at the gain center of five-level CH 3F far-infrared molecular gas amplifier as a function of pump beam intensity and pressure. The results indicate this large class of optically pumped molecular system can exhibit significant group velocity reduction over a broad range of the electromagnetic spectrum. The group velocity can be further controlled by using the rotational sublevel splitting in a Stark static electric field in conjunction with optical pumpings.
| Original language | English |
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| Pages (from-to) | 4005-4009 |
| Number of pages | 5 |
| Journal | Journal of Applied Physics |
| Volume | 91 |
| Issue number | 7 |
| DOIs | |
| State | Published - 1 Apr 2002 |