Extreme Nonlinear Optics in Gas-filled Hollow-core Fibres
Title | Extreme Nonlinear Optics in Gas-filled Hollow-core Fibres PDF eBook |
Author | Francesco Tani |
Publisher | |
Pages | |
Release | 2015 |
Genre | |
ISBN |
Extreme Nonlinear Optics with Spatially Controlled Light Fields
Title | Extreme Nonlinear Optics with Spatially Controlled Light Fields PDF eBook |
Author | Christian Kern |
Publisher | Logos Verlag Berlin GmbH |
Pages | 148 |
Release | 2014 |
Genre | Science |
ISBN | 3832538178 |
As in all nonlinear optics, control over the spatial phase of the fundamental light fields allows extensive influence on the well-established effect of High-Har monic Generation (HHG). This results in the realisation of coherent extreme ultraviolet (XUV) light with unique properties. Christian Kern shows and discusses in his thesis two schemes where phase shaping of ultrashort laser pulses is appli ed on scales below their fundamental wavelength. He shows the limitations of how nanoplasmonic objects can be administered for strong field physics. Furthermore, a novel approach of producing XUV light carrying orbital angular momentum via HHG is demonstrated and experimentally verified.
Exploring Optical Nonlinearity in Gas-filled Hollow Core Fibre
Title | Exploring Optical Nonlinearity in Gas-filled Hollow Core Fibre PDF eBook |
Author | Seyed Mohammad Abokhamis Mousavi |
Publisher | |
Pages | 0 |
Release | 2018 |
Genre | |
ISBN |
Mid-infrared Nonlinear Optics in Hollow-core Photonic-crystal Fiber
Title | Mid-infrared Nonlinear Optics in Hollow-core Photonic-crystal Fiber PDF eBook |
Author | Marco Cassataro |
Publisher | |
Pages | |
Release | 2018 |
Genre | |
ISBN |
Hollow Core Optical Fbers
Title | Hollow Core Optical Fbers PDF eBook |
Author | Walter Belardi |
Publisher | MDPI |
Pages | 184 |
Release | 2019-07-29 |
Genre | Technology & Engineering |
ISBN | 3039210882 |
This book is a printed edition of the Special Issue Hollow core optical fibers that was published in Fibers
Hollow Core Optical Fibre Based Gas Discharge Laser Systems
Title | Hollow Core Optical Fibre Based Gas Discharge Laser Systems PDF eBook |
Author | Adrian Love |
Publisher | Springer |
Pages | 120 |
Release | 2018-06-18 |
Genre | Science |
ISBN | 331993970X |
The research in this book represents the culmination of a drive to build the first discharge gas laser unencumbered by the effects of diffraction. This breakthrough has been achieved through careful implementation of a discharge within a hollow-core optical fibre, and by developing measurement and analysis techniques to demonstrate laser action in an experimental optical cavity. Gas lasers were amongst the earliest laser types to be demonstrated and commercialised, but it was recognised that noble gas lasers were limited by the minimum bore diameter of the laser tube, which is set by diffraction. The advent, in 2011, of hollow optical fibres with optical and physical properties suitable for gas discharge lasers opened up the opportunity to break this diffraction limit. Using a mixture of helium and xenon gas, lasing in the mid-infrared range was achieved using a 100μm core flexible hollow optical fibre which, at 1m long, is several hundred times the diffraction-limited Rayleigh length.
Low-light-level Nonlinear Optics with Rubidium Atoms in Hollow-core Photonic Band-gap Fibers
Title | Low-light-level Nonlinear Optics with Rubidium Atoms in Hollow-core Photonic Band-gap Fibers PDF eBook |
Author | Amar Ramdas Bhagwat |
Publisher | |
Pages | 0 |
Release | 2010 |
Genre | |
ISBN |
Low-light-level optical nonlinearities are of significant interest for performing operations such as single-photon switching and quantum non-demolition measurements on single-photons. To evoke strong nonlinearities from singlephotons, one can enhance the matter-photon interaction using strongly nonlinear materials such as alkali vapors in combination with an appropriate geometry such as a waveguide, which provides a long interaction length while maintaining a small light mode area. We demonstrate for the first time that such a system can be experimentally realized by loading rubidium vapor inside a hollow-core photonic band-gap fiber. Using the technique of light-induced atomic desorption in this geometry, we have generated optical depths greater than 1000. As a proof of principle, we demonstrate electromagnetically induced transparency (EIT) with control powers 1000 times lower than those used for hot vapor cells in a focused beam geometry. Working with such a high aspect ratio geometry requires us to identify and measure the various sources of decoherence via spectroscopy of desorbed atoms in the fiber. Using such techniques, we also estimate the temperature of the desorbing atoms inside the fiber. The desorption mechanism is studied, and we show that pulsed desorption beams of the right amplitude and duration can be used for generating precisely controlled optical depths. Finally, we investigate the use of various buffer gas techniques for increasing the effective transverse path of the atoms as they move across the fiber in order to reduce their ground state decoherence and map this effect as a function of buffer gas pressure.