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