Real-time observation of frequency Bloch oscillations with fibre loop modulation

来源 :光:科学与应用(英文版) | 被引量 : 0次 | 上传用户:hello_tyj
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
Bloch oscillations (BOs) were initially predicted for electrons in a solid lattice to which a static electric field is applied. The observation of BOs in solids remains challenging due to the collision scattering and barrier tunnelling of electrons. Nevertheless, analogies of electron BOs for photons, acoustic phonons and cold atoms have been experimentally demonstrated in various lattice systems. Recently, BOs in the frequency dimension have been proposed and studied by using an optical micro-resonator, which provides a unique approach to controlling the light frequency. However, the finite resonator lifetime and intrinsic loss hinder the effect from being observed practically. Here, we experimentally demonstrate BOs in a synthetic frequency lattice by employing a fibre-loop circuit with detuned phase modulation. We show that a detuning between the modulation period and the fibre-loop roundtrip time acts as an effective vector potential and hence a constant effective force that can yield BOs in the modulation-induced frequency lattices. With a dispersive Fourier transformation, the pulse spectrum can be mapped into the time dimension, and its transient evolution can be precisely measured. This study offers a promising approach to realising BOs in synthetic dimensions and may find applications in frequency manipulations in optical fibre communication systems.
其他文献
专利公开号:CN112575127Arn申请人:阳信亘嘉皮革制品有限公司rn摘要:本发明提供一种皮革制品边缘裁切设备,包括切割台,支撑腿,底板,第一滑孔,第一调节孔,可升降调节固定块结
期刊
以新疆博物馆展出的古代裤装为研究对象,参考汉代服饰画像砖及相关文献记载,复原并绘制古代新疆裤装平面款式图、结构分解图,对新疆古代裤子进行结构性复原与探讨,为汉唐服饰
专利公开号:CN112522452A申请人:南京丽妍信息技术有限公司摘要:本发明涉及手表加工制造技术领域,且公开了一种皮革表带加工用皮革平整装置,包括设备壳体和橡胶辊轴,所述设备壳体内部活动连接有橡胶辊轴,橡胶辊轴内部固定连接有铁磁条,橡胶辊轴内部固定连接有第一正极板,橡胶辊轴内部固定连接有第二正极板,橡胶辊轴外侧固定连接有复位弹簧。该皮革表带加工用皮革平整装置,在移动过程中带动橡胶辊轴自皮革材料下方擦过,使得皮革上带有负电荷,通过异性电荷的相互吸引作用,使得皮革自然铺平在正电荷板上,将橡胶辊轴沿着提升腔
Optical machine learning has emerged as an important research area that, by leveraging the advantages inherent to optical signals, such as parallelism and high
期刊
Design of an optical system, whether classic or novel, in the past or the present, requires significant effort from the designer. In addition to design methods
期刊
随着社会的发展和人们生活方式的变化,服装面料的创意设计在现有设计标准的基础上不断提高和创新.在当代多元化的背景下,面料是构成服装设计的重要材料基础之一,人们对织物设
环境保护问题一直是我国关注的重点问题之一,在我国科学技术不断发展的前提下,环境检测技术和手段正在逐渐完善,这将有助于环境检测质量逐渐提升,为我国环境保护工作的开展提
Recently, there has been growing interest in the miniaturization and integration of atomic-based quantum technologies. In addition to the obvious advantages bro
期刊
残疾人相较于正常人群存在许多的不便之处,对于服装面料的设计有其特殊的要求。目前,服装行业已经成为污染较为严重的产业之一,服装面料设计应注重可持续发展理念,促进经济、资源和人类的协调发展。本文通过调查分析了残疾人对于服装面料设计的需求,总结了残疾人服装面料的常见设计与应用,旨在坚持可持续发展理念之下,更好地利用服装面料设计解决残疾人生活中的一些问题。
Rapid development of solid-state lighting technology requires new materials with highly efficient and stable luminescence, and especially relies on blue light p
期刊