Výsledky vyhledávání

Report

Highly-Chirped Bragg Gratings for Integrated Silica Spectrometers

Autor: Field, James W., Berry, Sam A., Bannerman, Rex H. S., Smith, Devin H., Gawith, Corin B. E., Smith, Peter G. R., Gates, James C.

Publikováno v: Opt. Express 28, 21247-21259 (2020)

A blazed chirped Bragg grating in a planar silica waveguide device was used to create an integrated diffractive element for a spectrometer. The grating diffracts light from a waveguide and creates a wavelength dependent focus in a manner similar to a

Externí odkaz: http://arxiv.org/abs/2001.09163

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Report

Zn-indiffused diced ridge waveguides in MgO:PPLN generating 1 watt 780 nm SHG at 70% efficiency

Autor: Berry, Sam A., Carpenter, Lewis G., Gray, Alan C., Smith, Peter G. R., Gawith, Corin B. E.

Publikováno v: OSA Continuum 2, 3456-3464 (2019)

We present a metallic zinc indiffused diced ridge waveguide in magnesium doped periodically poled lithium niobate (MgO:PPLN) capable of generating over 1 W of 780 nm with 70% efficiency. Our 40 mm long waveguide has near circular fundamental mode out

Externí odkaz: http://arxiv.org/abs/1911.04170

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Dissertation/ Thesis

Ultra-high spatial and temporal resolution using Scanning Near-field Optical Microscopy

Autor: Berry, Sam

Scanning near-field optical microscopy (SNOM) is a system that can image beyond the conventional diffraction limit. It does this by collecting the information contained within evanescent fields. This unique ability to image using evanescent fields al

Externí odkaz: https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.568945

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Multiple double-metal bias-free terahertz emitters

Autor: McBryde, Duncan, Gow, Paul, Berry, Sam A., Aghajani, Armen, Barnes, Mark E., Apostolopoulos, V.

We demonstrate multiplexed terahertz emitters that exhibits 2 THz bandwidth that do not require an external bias. The emitters operate under uniform illumination eliminating the need for a micro-lens array and are fabricated with periodic Au and Pb s

Externí odkaz: http://arxiv.org/abs/1404.5792

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Analysis of BNST sex differences in humans using MRI

Autor: Hodgetts, Carl J, Berry, Sam

The project will examine the question ‘Is the BNST sexually dimorphic in humans’. This is an important question because many researchers speak about the BNST (a small brain region associated with anxiety and drug misuse) as being much larger in m

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::9267bdccf06d5f599552b8e85dfee530

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