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Updated: Jun 20, 2026

Direct Imaging of Laser-driven Ultrafast Molecular Rotation
Published on: February 4, 2017
Continuous-wave high-power rotational Raman generation in molecular deuterium
J T Green1, D E Sikes, D D Yavuz
1Department of Physics, 1150 University Avenue, University of Wisconsin at Madison, Madison, Wisconsin 53706, USA.
We generated over 300 mW of continuous-wave rotational Raman laser output. This was achieved using low-pressure molecular deuterium in a high-finesse optical cavity.
Area of Science:
- Physics
- Quantum Optics
- Laser Science
Background:
- Continuous-wave (CW) Raman lasers are valuable tools for spectroscopy and quantum information.
- Achieving high output power in Raman lasers, especially at rotational transitions, presents significant challenges.
Purpose of the Study:
- To demonstrate high-power continuous-wave rotational Raman laser generation.
- To investigate the feasibility of using molecular deuterium in a high-finesse cavity for efficient Raman lasing.
Main Methods:
- Utilized a high-finesse optical cavity.
- Employed low-pressure molecular deuterium as the gain medium.
- Operated the laser in a continuous-wave (CW) regime.
Main Results:
- Generated over 300 mW of rotational Stokes output power.
- Successfully achieved CW Raman laser operation in molecular deuterium.
Conclusions:
- Demonstrated a viable method for high-power CW rotational Raman laser generation.
- The use of molecular deuterium in a high-finesse cavity is effective for efficient Raman lasing.
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