Microaxicons for ultrashort wave packets II MAXWELL II

用于超短波包的微轴棱镜 II MAXWELL II

• 批准号: 200131533
• 负责人: Professorin Dr.-Ing. Ulrike Wallrabe
• 金额: --
• 依托单位: Proffesur für Mikroaktorik
• 依托单位国家: 德国
• 项目类别: Research Grants
• 财政年份: 2011
• 资助国家: 德国
• 起止时间: 2010-12-31 至 2019-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/200131533?language=en
• 关键词: Microaxicons; ultrashort; wave; packets; II

Arrays of piezoelectrically or thermally actuated aspheric micro mirrors are being developed in the MAXWELL II project. They will be evaluated by our partners from the Max-Born-Institute (MBI) in Berlin with regard to their application on ultrashort laser pulses. The basic element is a conical structure -an axicon- which also led to the name of the project. In addition, spiral shaped mirrors and arbitrarily aspheric and non-symmetric shapes will also be investigated with view to their capabilities in adaptive beam shaping.In a first project phase, MAXWELL I, we have already explored diverse actuation and fabrication techniques for such devices. Illuminated with laser light we could generate adaptive Bessel beams with their typical extended focal zone as well as hollow beams with variable angular orbital momentum.In MAXWELL II these concepts shall beconsequently miniaturized and made array compatible. This holds especially true for the piezoelectric actuation.the so far external heating and cooling of the thermal actuation integrated into the system to allow for fast and individual control of each element of an array.the possibilities and limits of arbitrary mirror shapes (asperic, non-symmetric) evaluated for unconventional optical set-upsthe possibility of also producing similar transmissive optical devices instead of purely reflective ones investigated.In total, seven optical systems, at least four of which in an array, shall be developed, manufactured, evaluated and handed over to MBI for further analysis with ultrashort laser pulses.

阵列的压电或热驱动的非球面微镜正在开发中的麦克斯韦II项目。我们将由柏林Max-Born-Institute（MBI）的合作伙伴对它们在超短激光脉冲方面的应用进行评估。基本元素是一个圆锥形结构-一个轴棱锥-这也导致了该项目的名称。此外，螺旋形反射镜和任意非球面和非对称形状也将被调查，鉴于他们在自适应光束整形的能力。在第一个项目阶段，麦克斯韦I，我们已经探索了各种驱动和制造技术，这样的设备。在激光照射下，我们可以产生具有典型的扩展焦区的自适应贝塞尔光束和具有可变角轨道动量的空心光束，在麦克斯韦II中，这些概念将被小型化并与阵列兼容。这对压电驱动尤其适用。迄今为止，热驱动的外部加热和冷却集成到系统中，以允许对阵列中的每个元件进行快速和单独的控制。（asperic，非对称）评估非常规光学设置-增加了生产类似的透射光学器件而不是纯反射光学器件的可能性。总共使用了七个光学系统，其中至少四个在阵列中，应开发、制造、评估并移交给MBI，以便使用超短激光脉冲进行进一步分析。