期刊
PHYSICAL REVIEW APPLIED
卷 16, 期 1, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevApplied.16.014009
关键词
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资金
- JSPS KAKENHI [JP17H06205, JP20K05357]
- MEXT Quantum Leap Flagship Program (MEXT Q-LEAP) [JPMXS0118067246]
- FoPM, WINGS Program, The University of Tokyo
- National Research Foundation of Korea [2020R1A4A1018015, 2020R1F1A1074162]
- University of Tokyo Excellent Young Researcher Program
- National Research Foundation of Korea [2020R1F1A1074162, 2020R1A4A1018015] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
The proposed system utilizes an injection-locked pulsed laser with an electro-optic phase modulator in a Ti:sapphire laser cavity to achieve broadband optical spectra and long pulse durations. The output microsecond-long pulse is composed of a train of short pulses in the time domain and a comblike broadband spectrum with fast chirping in the frequency domain. The system shows promise for efficient Doppler cooling of positronium.
We propose an injection-locked pulsed laser with an electro-optic phase modulator in a Ti:sapphire laser cavity to realize both broadband optical spectra and long pulse durations. Further, we experimentally and theoretically demonstrate that the output microsecond-long pulse consists of a train of short pulses in the time domain and a comblike broadband spectrum with fast chirping in the positive and negative directions in the frequency domain. Finally, we discuss the potential of the proposed system for efficient Doppler cooling of positronium, a short-lived exotic atom.
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