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Towards 2020 – Photonics driving economic growth in Europe

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2. <strong>Photonics</strong> Research and Innovation Challenges<br />

85<br />

will promote greater <strong>Europe</strong>an competitiveness<br />

through advanced research.<br />

n The establishment of open-access distributed<br />

high-tech facilities, so as to allow advanced<br />

experiments to be performed, new materials<br />

to be developed and characterised, and devices<br />

and prototypes to be fabricated and tested <strong>in</strong><br />

the most efficient way.<br />

n Unexplored new material systems (graphene,<br />

silicene)<br />

Innovative research should always be developed<br />

follow<strong>in</strong>g guidel<strong>in</strong>es based on its potential impact<br />

for mak<strong>in</strong>g photonics more accessible, eco-friendly,<br />

low-cost, or <strong>in</strong> replac<strong>in</strong>g or reduc<strong>in</strong>g use of dangerous<br />

or scarce materials.<br />

Details of the roadmap for research <strong>in</strong> the time<br />

frame of 2014-<strong>2020</strong> are given <strong>in</strong> the follow<strong>in</strong>g<br />

table. However, it is useful to identify a number<br />

of representative examples of the ‘hot topics’ <strong>–</strong><br />

clearly valuable developments that as yet cannot<br />

be achieved with present technological capabilities,<br />

such as:<br />

n Nanoscale imag<strong>in</strong>g<br />

n Low-loss semiconductor photonics<br />

n Semiconductor/other material lasers with<br />

higher efficiency or for currently <strong>in</strong>accessible<br />

wavelengths<br />

n Non-reciprocal semiconductor materials<br />

n New materials for THz<br />

n Optical materials with optimal thermal<br />

characteristics<br />

n S<strong>in</strong>gle photon sources and detectors<br />

operat<strong>in</strong>g at room temperature<br />

n Bio-compatible material for artificial ret<strong>in</strong>a<br />

Education and tra<strong>in</strong><strong>in</strong>g<br />

For education and tra<strong>in</strong><strong>in</strong>g, one of the most critical<br />

challenges will be to overcome the present<br />

major difficulty fac<strong>in</strong>g the photonics community,<br />

namely of secur<strong>in</strong>g the necessary knowledgeable<br />

and skilled workforce. This shortage applies at all<br />

levels, from technical management and R&D positions<br />

through to technical staff, and is encountered<br />

both <strong>in</strong> <strong>in</strong>dustry and academia.<br />

In the longer term, solv<strong>in</strong>g these shortages will<br />

require <strong>in</strong>creas<strong>in</strong>g the wider community <strong>in</strong>terest<br />

<strong>in</strong> photonics, and an awareness of its importance.<br />

Students experience<br />

the ‘fasc<strong>in</strong>ation of light’.<br />

© Catalunya Caixa<br />

Over a longer time-scale, further developments can<br />

be considered com<strong>in</strong>g from fundamental science,<br />

and based on novel concepts and approaches for<br />

materials and processes. These could lead to useful<br />

applications, but as yet the specific application<br />

need or means of fully exploit<strong>in</strong>g their potential<br />

are unknown. Examples fall<strong>in</strong>g with<strong>in</strong> this category<br />

<strong>in</strong>clude:<br />

n Photon-photon and photon-phonon<br />

<strong>in</strong>teractions<br />

n Light-matter <strong>in</strong>teraction <strong>in</strong> ‘extreme’<br />

conditions<br />

n New materials (eng<strong>in</strong>eered materials,<br />

new organic materials)<br />

n New aspects of photonics at the nanoscale

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