Ultrastable multi-branch femtosecond laser as a front-end for time-domain nonlinear and quantum spectroscopy

超稳定多分支飞秒激光器作为时域非线性和量子光谱学的前端

• 批准号: RTI-2018-01024
• 负责人: Seletskiy, Denis
• 金额: $ 10.93万
• 依托单位: École Polytechnique de Montréal
• 依托单位国家: 加拿大
• 项目类别: Research Tools and Instruments
• 财政年份: 2017
• 资助国家: 加拿大
• 起止时间: 2017-01-01 至 2018-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=642253
• 关键词: Ultrastable; multi; branch; femtosecond; laser

Advances in femtosecond laser technology ultimately enabled the field of ultrafast science, allowing for the study of dynamical processes occurring in nature on femtosecond and attosecond timescales. From the kinetics of chemical reactions to the dynamics of collective excitations in condensed matter, time-resolving ultrafast process unveils their microscopic origins and yields invaluable information on transient phenomena such as, for example, dressing of quasiparticles, decoherence mechanisms, etc. This ability to trace the evolution of collective excitations and their correlations has advanced our understanding of many-body interactions and their emergent macroscopic properties. Our Team firmly believes that advances in femtosecond laser technology are poised to unlock a new era, where light and matter fields can be accessed from the entirely new perspective of quantum field theory. From this perspective, in this proposal we are seeking funding to purchase a state-of-the-art custom-designed commercial erbium-doped fiber femtosecond fiber laser, which delivers two independent and mutually coherent optical pulse trains. Combined with the possibility of independent amplitude modulation of both outputs, such system provides a front-end toward many experiments at the forefront of contemporary science.

飞秒激光技术的进步最终使超快科学领域成为可能，允许在飞秒和阿秒时间尺度上研究自然界中发生的动态过程。从化学反应的动力学到凝聚态物质集体激发的动力学，时间分辨超快过程揭示了它们的微观起源，并产生了关于瞬态现象的宝贵信息，例如准粒子的修饰，退相干机制等。这种追踪集体激发及其相互关系演变的能力，提高了我们对多体相互作用及其涌现的宏观性质的理解。我们的团队坚信，飞秒激光技术的进步将开启一个新的时代，从量子场论的全新角度来看待光场和物质场。从这个角度来看，在本提案中，我们正在寻求资金来购买最先进的定制设计的商用掺铒光纤飞秒光纤激光器，该激光器提供两个独立且相互相干的光脉冲序列。结合两种输出独立调幅的可能性，这种系统为当代科学前沿的许多实验提供了一个前端。