18 papers · ranked by Valyu relevance
Chenzi Guo
Title: Editorial The extreme spectral broadening of light in supercontinuum generation (SCG) is considered by many as the ultimate legacy of nonlinear optics. In this interview, Light: Science & Applications invited John Dudley [see the “Short Bio” section]-pioneer of supercontinuum generation, rogue waves, and…
Egidijus Auksorius
This thesis centres on the development of multidimensional fluorescence imaging tools, with a particular emphasis on fluorescence lifetime imaging (FLIM) microscopy for application to biological research. The key aspects of this thesis are the development and application of tunable supercontinuum excitation sources…
Mengmeng Tao, Ting Yu, Zhenbao Wang, Hongwei Chen + 3 more
'Guobin Feng' 'Xisheng Ye'] Super-flat supercontinua are generated from a double clad Tm-doped fiber amplifier. Two different laser configurations are investigated and compared. In the direct-output configuration, the long-wavelength edge of the supercontinuum spectra is extended to beyond 2.65 μm with a 10 dB…
A. Safaei Bezgabadi, M. A. Bolorizadeh
A quantum theory is established for the propagation of electromagnetic waves in highly nonlinear dispersive optical fibers. By applying the method recently presented dispersion terms and retarded response of the medium are included for the propagation of light in a fiber in this work. A coupled stochastic generalized…
Uğur Teğin, Bülend Ortaç
A new method to generate multi-watt-level, octave-spanning, spectrally flat supercontinua stemmed from cascaded Raman scattering in graded-index multimode fibers is reported. Formation dynamics of supercontinua are investigated by studying the effect of fiber length and core size. High power handling capacity of the…
Geng Wang, Lianhuang Li, Xiaoxia Liao, Shu Wang + 15 more
Optimal imaging strategies remain underdeveloped to maximize information for fluorescence microscopy while minimizing the harm to fragile living systems. Taking hint from the supercontinuum generation in ultrafast laser physics, we generated ‘supercontinuum’ fluorescence from untreated unlabeled live samples before…
L-D Chiu, L Su, S Reichelt, WB Amos
Shortly after its development, the white light supercontinuum laser was applied to confocal scanning microscopy as a more versatile substitute for the multiple monochromatic lasers normally used for the excitation of fluorescence. This light source is now available coupled to commercial confocal fluorescence…
Mark F. Coughlan, Lei Zhang, Rebecca T. Perelman, Umar Khan + 5 more
Fluorescence microscopy is a cornerstone of biological research. However, fluorescent labeling is challenging in live cells and is constrained by photobleaching and phototoxicity. Label-free methods allow cells to be studied in their native state, but most techniques have poor contrast, lack 3D capability, rely on…
Authors not listed
Hyperstructures and their hierarchical extensions—SuperHyperStructures—provide a versatile algebraic language for modeling multi-level and interdependent systems [1,2]. In materials and chemical sciences, structural descriptions naturally span a broad spectrum of characteristic length scales, commonly organized as…
Guang Yuan, Edward T. F. Rogers, Nikolay I. Zheludev
Evanescent light can be localized at the nanoscale by resonant absorption in a plasmonic nanoparticle or taper or by transmission through a nanohole. However, a conventional lens cannot focus free-space light beyond half of the wavelength λ. Nevertheless, precisely tailored interference of multiple waves can form a…
Andrew N. Jordan, John C. Howell, Nicholas Vamivakas, Ebrahim Karimi
> Abstract. This book chapter gives a selective review of physical implementations and applications of superoscillations and associated phenomena. We introduce the field by reviewing simple examples of superoscillations and showing how their existence naturally follows from the real part of the quantum mechanical weak…
Authors not listed
Hyperstructures and their hierarchical extensions [1]—SuperHyperStructures—provide a versatile formalism for modeling multi-layered and complex phenomena [2, 3]. A MicroStructure is a measurable mapping that assigns to each material point a single local state, representing attributes such as phase, crystal orientation…
Ali Isa
The anatomy of a superlens is made of a thin silver slab of material with a negative refractive index sandwiched by two positive index media . This lens is capable of reconstructing the image of an object perfectly in the image plane. It is wellknown that the sharpness or resolution of conventional lenses is always…
Masud Mansuripur, Per Kristen Jakobsen
1. Introduction. Superoscillating functions are known to exhibit local frequencies outside the bandwidth of their Fourier transforms.1 These functions, which were originally discovered in the context of time symmetry in the quantum measurement process, 2-4 have been extensively studied for their intriguing as well as…
Gabriel Krenzer, Johan Klarbring, Kasper Tolborg, Hugo Rossignol + 3 more
Superionic conductors have great potential as solid-state electrolytes, but the physics of type-II superionic transitions remains elusive. In this study, we employed molecular dynamics simulations, using machine learning force fields, to investigate the type-II superionic phase transition in α-Li3N. We characterised…
David Thompson, Johan Gielis
Our understanding of quantum phenomena often begins with simple particle-in-a-box style problems, the solutions of which introduce the student to foundational quantum concepts such as degeneracy and quantization. Simple model geometries of confinement afford analytic solutions, which are readily derivable, easily…
Thomas Konrad, Filippus S. Roux
Arguments from scale physics, augmented by numerical and analytical investigations, are used to consider the probability and the detectability of superoscillations in generic functions. The detectability is defined as the fraction of the total power in the field that is located at regions of superoscillations. It is…
Pedro M. Pereira, Nils Gustafsson, Mark Marsh, Musa M. Mhlanga + 1 more
Localization based super-resolution microscopy relies on the detection of individual molecules cycling between fluorescent and non-fluorescent states. These transitions are commonly regulated by high-intensity illumination, imposing constrains to imaging hardware and producing sample photodamage. Here, we propose…