Dr. David Grojo 是受欧盟ERC研究基金资助的杰出研究员,主要研究方向为超快激光诱导的微纳材料加工。近期的研究成果发表在《Nature Communications》、《Physical Review Letters》以及《Optics Letters》等期刊上。法国LP3实验室是欧洲最重要的激光研究实验室之一,拥有从高功率连续激光到纳秒,皮秒以及飞秒的世界一流激光光源。配套的高速摄影机,光谱仪,共聚焦显微镜,SEM,AFM等诊断分析设备一应俱全。目前我们希望招收一名自主性强对科研的热情浓厚,有扎实的激光、非线性光学以及等离子体物理背景的博士生,并将提供相当有竞争力的全奖资助。以下是项目的英文介绍:
PhD Positions at Aix-Marseille Univ., France: Ultrafast Laser Material Processing
High-peak power compact femtosecond lasers allow strong-field interactions that are the basis for high-precision laser micro-fabrication. They also create extreme conditions within the matter, leading to the generation of rainbow light used to produce even shorter pulses and new frequencies that can extend from the X-ray to the TeraHertz domain. However, due to the low conversion efficiencies, these attractive light pulses remain unexploited in the context of laser nano-/micro-fabrication.
The main objective of this project is to exceed the intrinsic limits of ultrafast laser material processing by developing novel seeded-control technologies with extreme light pulses. In the proposed concept, seed free carriers are injected into materials from extreme light and then avalanched with perfectly synchronized infrared pulses to extract all potential benefits from modest energy new types of radiation.
The project includes the study of interactions seeded with deep-ultraviolet, few-optical-cycle and mid-infrared ultrashort pulses. The expected nonlinear processes with these radiations open new and exciting opportunities to tailor material properties with nanometer-scale spatial resolutions and in the three dimensions (3D) for materials inside which the occurrence of breakdown is, today, nearly inaccessible (e.g. semiconductors). The latter must lead to the first demonstrations of rapid 3D prototyping by laser of silicon photonics microdevices.
A long term objective is to open the door to the use of the most extreme ultrashort laser-induced radiations, including extreme-ultraviolet attosecond pulses that hold promises to reach the highest degree of control in the time and space of the interactions.
These and other ideas require investigations on ionization physics by ultrashort pulses at extreme wavelengths. They also require tight control of the ultrafast pulses, broadband manipulations and novel interaction diagnostics technologies that will be developed as parts of the project to extract all potential benefits from modest energy new types of radiation.
We are looking for PhD candidates to be part of this ERC funded project.
Your qualifications. We are looking for a highly motivated candidate with a solid background in laser science and technologies, nonlinear optics, strong field and plasma physics and/or materials science. Good spoken and written English is mandatory.
Laboratory website:
wwww.lp3.univ-mrs.fr (English section: http://www.lp3.univ-mrs.fr/spip.php?rubrique48)
Some recent work from the group:
- M. Chanal., V. Yu Fedorov, M. Chambonneau, R. Clady, O. Utéza, S.Tzortzakis, D. Grojo, Crossing the threshold of ultrafast laser writing in bulk silicon, Nature Communications 8 (2017) 773
- M. Chambonneau, Q. Li, M. Chanal, N. Sanner, D. Grojo, Writing waveguides inside monolithic crystalline silicon with nanosecond laser pulses, Optics Letters 41 (2016) 4875
- V. Yu. Fedorov, M. Chanal, D. Grojo, S. Tzortzakis, Accessing extreme spatio-temporal localization of high power laser radiation through transformation optics and scalar wave equations, Physical Review Letters 117 (2016) 043902
Interested candidates with strong records demonstrating accomplishments relevant to the topic can send CV (summarizing previous research/work experience, research interest, and other career accomplishments) and contact information of 2 references to :
David GROJO, david.grojo@univ-amu.fr
Application deadline is continuous until positions have been filled. |