تقرير
Universality in odd-even harmonic generation and application in terahertz waveform sampling
| العنوان: | Universality in odd-even harmonic generation and application in terahertz waveform sampling |
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| المؤلفون: | Trieu, Doan-An, Phan, Ngoc-Loan, Truong, Quan-Hao, Nguyen, Hien T., Le, Cam-Tu, Vu, DinhDuy, Le, Van-Hoang |
| سنة النشر: | 2023 |
| المجموعة: | Physics (Other) Quantum Physics |
| مصطلحات موضوعية: | Quantum Physics, Physics - Computational Physics, Physics - Optics |
| الوصف: | Odd-even harmonics emitted from a laser-target system imprint rich, subtle information characterizing the system's dynamical asymmetry, which is desirable to decipher. In this Letter, we discover a simple universal relation between the odd-even harmonics and the asymmetry of the THz-assisted laser-atomic system -- atoms in a fundamental mid-IR laser pulse combined with a THz laser. First, we demonstrate numerically and then analytically formulize the harmonic even-to-odd ratio as a function of the THz electric field, the source of the system's asymmetry. Notably, we suggest a scaling that makes the obtained rule universal, independent of the parameters of both the fundamental pulse and atomic target. This universality facilitates us to propose a general pump-probe scheme for THz waveform sampling from the even-to-odd ratio, measurable within a conventional compact setup. |
| نوع الوثيقة: | Working Paper |
| DOI: | 10.1103/PhysRevA.108.023109 |
| URL الوصول: | http://arxiv.org/abs/2301.02910 |
| رقم الأكسشن: | edsarx.2301.02910 |
| قاعدة البيانات: | arXiv |
| DOI: | 10.1103/PhysRevA.108.023109 |
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