dorsal/arxiv
View SchemaGeneration of coherent terahertz pulses in Ruby at room temperature
| Authors | Elena Kuznetsova, Yuri Rostovtsev, Nikolai G. Kalugin, Roman Kolesov, Olga Kocharovskaya, Marlan O. Scully |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0605085 |
| URL | https://arxiv.org/abs/quant-ph/0605085 |
| DOI | 10.1103/PhysRevA.74.023819 |
Abstract
We have shown that a coherently driven solid state medium can potentially produce strong controllable short pulses of THz radiation. The high efficiency of the technique is based on excitation of maximal THz coherence by applying resonant optical pulses to the medium. The excited coherence in the medium is connected to macroscopic polarization coupled to THz radiation. We have performed detailed simulations by solving the coupled density matrix and Maxwell equations. By using a simple $V$-type energy scheme for ruby, we have demonstrated that the energy of generated THz pulses ranges from hundreds of pico-Joules to nano-Joules at room temperature and micro-Joules at liquid helium temperature, with pulse durations from picoseconds to tens of nanoseconds. We have also suggested a coherent ruby source that lases on two optical wavelengths and simultaneously generates THz radiation. We discussed also possibilities of extension of the technique to different solid-state materials.
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"abstract": "We have shown that a coherently driven solid state medium can potentially\nproduce strong controllable short pulses of THz radiation. The high efficiency\nof the technique is based on excitation of maximal THz coherence by applying\nresonant optical pulses to the medium. The excited coherence in the medium is\nconnected to macroscopic polarization coupled to THz radiation. We have\nperformed detailed simulations by solving the coupled density matrix and\nMaxwell equations. By using a simple $V$-type energy scheme for ruby, we have\ndemonstrated that the energy of generated THz pulses ranges from hundreds of\npico-Joules to nano-Joules at room temperature and micro-Joules at liquid\nhelium temperature, with pulse durations from picoseconds to tens of\nnanoseconds. We have also suggested a coherent ruby source that lases on two\noptical wavelengths and simultaneously generates THz radiation. We discussed\nalso possibilities of extension of the technique to different solid-state\nmaterials.",
"arxiv_id": "quant-ph/0605085",
"authors": [
"Elena Kuznetsova",
"Yuri Rostovtsev",
"Nikolai G. Kalugin",
"Roman Kolesov",
"Olga Kocharovskaya",
"Marlan O. Scully"
],
"categories": [
"quant-ph"
],
"doi": "10.1103/PhysRevA.74.023819",
"title": "Generation of coherent terahertz pulses in Ruby at room temperature",
"url": "https://arxiv.org/abs/quant-ph/0605085"
},
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