تقرير
Photon Bose-Condensate as a Tunable Terahertz Laser Source without Inversion
| العنوان: | Photon Bose-Condensate as a Tunable Terahertz Laser Source without Inversion |
|---|---|
| المؤلفون: | Maximov, Timofey V., Bondarev, Igor V., Kurbakov, Igor L., Lozovik, Yurii E. |
| سنة النشر: | 2023 |
| المجموعة: | Condensed Matter |
| مصطلحات موضوعية: | Condensed Matter - Quantum Gases |
| الوصف: | We develop a theoretical model for a tunable coherent terahertz radiation source based on the long-lived Bose condensate of photons. In the device we propose, the original photon pumping is performed incoherently by a blackbody radiation emitter. The photons thus produced Bose-condense by the inelastic relaxation on a two-dimensional electron gas in a perpendicular magnetostatic field. The process involves neither population inversion nor light wave amplification the standard laser sources are built on. The coherence and tunability of the light emitted by such a photon condensate are provided and supported by the discrete spectrum of the electron gas in the quantizing magnetic field. The device is a compact-size semiconductor crystal. We propose the design and perform the realistic calculations of the physical properties and limiting factors for the terahertz photon Bose-condensate resonator. We show that our terahertz source can deliver the highly coherent light emission in the frequency range of 3-30 THz for the magnetic field induction of the order of 2 T, with the upper emission frequency limit adjustable by the strength of the magnetic field applied. Comment: Main text (15 pages, 7 figures, 52 references) + Supplementary materials (27 pages, 27 figures, 10 references) |
| نوع الوثيقة: | Working Paper |
| URL الوصول: | http://arxiv.org/abs/2304.02174 |
| رقم الأكسشن: | edsarx.2304.02174 |
| قاعدة البيانات: | arXiv |
| الوصف غير متاح. |