laser action in a sentence

1. Many such excited atoms induce emissions of photons sufficient for laser action to occur.
2. Self-pulsation takes place at the beginning of laser action.
3. On the other hand SLEDs lack optical feedback, so that no laser action can occur.
4. He and his colleagues identified criteria necessary for the process of laser action at gamma-ray energies.
5. For practical use, it would be necessary to demonstrate diode laser action, continuous-wave, at room temperature.
6. It's difficult to find laser action in a sentence.
7. At large density of excitation, the cooperative quenching ( cross-relaxation ) reduces the efficiency of the laser action.
8. Phonon laser action has been stated in a wide range of physical systems ( e . g . semiconductors ).
9. This enables laser action at relatively long wavelengths, which can be tuned simply by altering the thickness of the layer.
10. Unlike XeCl, the best chlorine donor is [ [ CCl4 | ] ] while no laser action occurs when using HCl.
11. There are many hundreds of solid-state media in which laser action has been achieved, but relatively few types are in widespread use.
12. Absorption is the active process in photodiodes, solar cells, and other semiconductor photodetectors, while stimulated emission is responsible for laser action in laser diodes.
13. The possibility of phonon laser action had been proposed in a wide range of physical systems such as nanomechanics, semiconductors, nanomagnets and paramagnetic ions in a lattice.
14. In many optically-transparent hosts, such active centers may keep their excitation for a time on the order of milliseconds, and relax with stimulated emission, providing the laser action.
15. This is true even if the absorption phenomena occur on the side of shorter wavelengths and therefore limits the laser action at the red region of the electromagnetic spectrum from light emission.
16. While in many lasers the laser process involves the transition of atoms between different electronic energy states, as described in the model above, this is not the only mechanism that can result in laser action.
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