The goal of this thesis is to study optical non-linearities of strongly interacting Rydberg atoms inside hollow-core photonic crystal fibres. Especially the sensitivity of Rydberg atoms to microwave and THz radiation makes this a promising system for sensing applications. The prospective student will develop new types of hollow core fibres adapted to the properties of Rydberg atoms in Erlangen. The spectroscopy of Rydberg atoms inside these fibres will be carried out in Stuttgart.
By working in Erlangen and in Stuttgart the PhD student will acquire expertise in the field of photonic crystal fibres, in atomic spectroscopy and Rydberg physics. The concept of a joint PhD student Erlangen/Stuttgart has already been implemented successfully.
This crash course will introduce Bloch's theoremfor electromagnetism, photonic band gaps, the confinement of light innovel waveguides and cavities by synthetic optical "insulators,"startling sub-micron fabrication advances, exotic optical fibers, andwill upend what you thought you knew about total internalreflection.
The classification of photonic crystal fiber can be solid core PCF where the light is guided by total internal reflection, and Hollow core photonic bandgap fibers (PBF) in which light is guided through the photonic bandgap effect.
This thesis examines laser generation from the ultraviolet to the short edge of the mid-infrared band by exploiting the nonlinear effects in photonic crystal fibers (PCFs). Several different physical mechanisms are investigated by using homemade PCFs with elaborately customized dispersion profiles....
Semenova : "All-fiber polarimetric electric field sensing using liquid crystal infiltrated photonic crystal fiber.", Sensors and Actuators A: Physical, Vol.
Dr. Marin Soljacic received his undergraduate degrees from MIT (1996), and a PhD from Princeton (2000), with a thesis topic in nonlinear optics. After graduating, he joined MIT as a Pappalardo Fellow, and is currently a Principal Research Scientist at MIT. He has also been a consultant with OmniGuide Communications almost since its inception. Dr. Soljacic is an expert in photonic crystals and nonlinear optics. He has co-authored more than 50 scientific articles, is a co-inventor on 4 patents (10 more pending), and has given more than 40 invited talks at conferences and universities around the world.”
Semenova : "Directional electric field sensitivity of a liquid crystal infiltrated photonic crystal fiber.", IEEE Photonics Technology Letters, Vol.
OmniGuide Communications Inc. recently introduced its first product, a hollow-core photonic bandgap fiber (the OmniGuide fiber) designed to transmit 10.6 micron laser light for medical and industrial applications. Preliminary veterinary and human clinical trials with this fiber have been very successful. OmniGuide also plans to develop a version of these fibers for telecom applications. In our talk, we present the physics of OmniGuide fibers, discuss their theoretical and experimental performance, and describe some of the manufacturing processes required for their production. We will also present results on some recent clinical trials of the fiber.
Come and find out what solid-state physics has brought to in the last 15 years: photonic crystals andthe surprising new phenomena that arise when light propagates througha periodic medium.
Semenova : "Experimental demonstration of an All-Fiber Variable Optical Attenuator based on Liquid Crystal infiltrated Photonic Crystal Fibers", Microwave and Optical Technology Letters, Vol.