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2. Long-Range Refractive Index Sensing Using Plasmonic Nanostructures

Author

Rindzevicius, Tomas, Alaverdyan, Yury, Käll, Mikael, Andrew Murray, W., and L. Barnes, William

Abstract

We study the variation in localized surface plasmon resonance (LSPR) spectra (LSPR600 nm) as a function of dielectric coating thickness. Langmuir−Blodgett multilayers composed of 22-tricosenoic acid (n1.53) were deposited onto short-range-ordered Au nanodisks and nanoholes on glass in air. For large dielectric coating thicknesses (d100−340 nm), the LSPRs exhibit a pronounced oscillatory behavior with a periodicity of ∼190 nm. This is in agreement with a simple image-dipole model, which yields a periodicity of ∼LSPR/2n. However, the amplitude of the dipolar plasmon resonance wavelength oscillation LSPR(d) is surprisingly large, of the order 25−45 nm for d300 nm, indicating the importance of finite size effects. The large LSPR shifts observed at such a large distance from the actual metal surface suggest the possibility of using comparatively thick dielectric films as spacer layers in bio/chemo LSPR sensor applications.

Published
2007
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3. TURNING KIDS INTO COUCH POTATOES IS NOT A CURE.

Author

DR ANDREW MURRAY

Abstract

SOME health experts and doctors have written to the Government calling for a ban on tackling in school rugby games, warning that risks of injury are 'high and often serious' in the under 18s. Decreasing the risk of injury in any sport is clearly important. But my contention is that in highlighting risks, but not mentioning the considerable benefits that can be accrued through playing sport and rugby in particular, we are in danger of putting our children off sport. Without the tackle, rugby is not the same. [ABSTRACT FROM PUBLISHER]

Published
2016

4. THE ONLY WAY IS TO LET THE CHILDREN PLAY.

Author

ANDREW MURRAY

Abstract

OF COURSE it is extremely important to reduce any risks to young people when it comes to any sport. But taking tackling and the scrum out of rugby for schoolboys is the wrong thing to do. Kids enjoy rugby. It gets them active. It gets the happy hormones going. It stops them being couch potatoes. [ABSTRACT FROM PUBLISHER]

Published
2017

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