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129  <span itemprop="name">A World Leading Research Programme Opening up the Terahertz Spectrum</span>
130  <span itemprop="description">UCL, Cambridge University and the University of Leeds are opening up the terahertz spectrum for widespread application through an EPSRC funded research programme. Find out more details about our exciting vision and ambition...</span>
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137                  <h1>A World Leading Research Programme Opening up the Terahertz Spectrum</h1>
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145                  <p class="lead">UCL, Cambridge University and the University of Leeds are opening up the terahertz spectrum for widespread application through an EPSRC funded research programme. Find out more details about our exciting vision and ambition...</p>
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161          <div class="" id="parent-fieldname-text"><div id="front-quote"><picture><source sizes="(min-width: 576px) 400px, (min-width: 768px) 600px, 98vw" srcset="https://www.terahertzsystems.org/alwyn.png/@@images/image-400-e67dcd8458d8d838b03903cd05684fe7.png 400w,https://www.terahertzsystems.org/alwyn.png/@@images/image-800-6d90d7f198c1b6ecf8221f172b204770.png 800w,https://www.terahertzsystems.org/alwyn.png/@@images/image-1000-b498b4a1ae3bdfcb6471e1e0dcb6686e.png 1000w"></source><img alt="Alwyn Seeds" class="image-richtext image-left picture-variant-small" height="142" loading="lazy" src="https://www.terahertzsystems.org/alwyn.png/@@images/image-400-e67dcd8458d8d838b03903cd05684fe7.png" title="Alwyn Seeds" width="142" /></picture>"This programme will enable us to address the THz spectrum with the same precision and sensitivity as is today possible at radio frequencies, leading to this underused part of the electromagnetic spectrum finally achieving its full scientific and commercial potential."
162<div id="front-quote-name">Professor Alwyn Seeds, Principal Investigator for Programme</div>
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164<p>The terahertz (THz) frequency region within the electromagnetic spectrum, covers a frequency range of about one hundred times that currently occupied by all radio, television, cellular radio, Wi-Fi, radar and other users and has proven and potential applications ranging from molecular spectroscopy through to communications, high resolution imaging (e.g. in the medical and pharmaceutical sectors) and security screening. Yet, the underpinning technology for the generation and detection of radiation in this spectral range remains severely limited, being based principally on Ti:sapphire (femtosecond) pulsed laser and ph
164otoconductive detector technology, the THz equivalent of the spark transmitter and coherer receiver for radio signals. The THz frequency range therefore does not benefit from the coherent techniques routinely used at microwave/optical frequencies. <strong>Now an EPSRC Programme grant awarded to leading Terahertz <a class="internal-link" href="https://www.terahertzsystems.org/about/people/summary">researchers</a> at UCL, Cambridge and Leeds universities and the London Centre for Nanotechnology will address this.</strong></p>
165<p><img alt="" class="image-richtext image-inline" height="" src="../resolveuid/154d94565b274f20ab4b195100af8376/@@images/image/large" width="" /><picture><source sizes="(min-width: 576px) 600px, (min-width: 768px) 600px, 98vw" srcset="https://www.terahertzsystems.org/front1.png/@@images/image-600-4d9c616980349056b383a1dc241c71e6.png 600w,https://www.terahertzsystems.org/front1.png/@@images/image-400-a6a0944e71be287b5e075d0e2eac40a5.png 400w,https://www.terahertzsystems.org/front1.png/@@images/image-800-7002d2d07a00e60aae74779daf42ce8d.png 800w,https://www.terahertzsystems.org/front1.png/@@images/image-1000-8716a1d940bc9edf986ec4eabda20cee.png 1000w,https://www.terahertzsystems.org/front1.png/@@images/image-1200-6324af071ad8a8a056959433be0e4abd.png 1200w"></source><img alt="" class="image-richtext picture-variant-medium" height="157" loading="lazy" src="https://www.terahertzsystems.org/front1.png/@@images/image-600-4d9c616980349056b383a1dc241c71e6.png" title="front1.png" width="600" /></picture></p>
166<p>We have recently demonstrated optical communications technology-based techniques for the generation of high spectral purity continuous wave THz signals at <a class="internal-link" href="https://www.terahertzsystems.org/about/ucl">UCL</a>, together with state-of-the-art THz quantum cascade laser (QCL) technology at <a class="internal-link" href="https://www.terahertzsystems.org/about/cambridge">Cambridge</a>/Leeds. We will bring together these internationally-leading researchers to create coherent systems across the entire THz spectrum. These will be exploited both for fundamental science (e.g. the study of nanostructured and mesoscopic electron systems) and for applications including short-range high-data-rate wireless communications, information processing, materials detection and high resolution imaging in three dimensions.</p>
167<p class="callout"><strong><span class="visualHighlight">Our vision is to open up the THz spectrum for widespread scientific and commercial application, through the use of photonics-enabled coherent techniques. This will be achieved by bringing together optical communications technology-based techniques, for the generation of high spectral purity continuous wave (CW) THz frequency signals, with state of-the-art THz quantum cascade laser (QCL) technology.</span></strong></p>
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170<p>We will create new, compact, low (few Watts) power consumption semiconductor-based coherent device and systems technologies, able to span the entire THz spectrum of applications interest. The successful completion of this <a class="internal-link" href="https://www.terahertzsystems.org/programme">Programme</a> will bring capabilities available at radio or optical frequencies to this traditionally difficult part of the electromagnetic spectrum. However, our vision goes much further. The availability of THz radiation, albeit in the form of various expensive accelerator and pulsed higher frequency laser sources, has already spurred a large and growing awareness of what is possible using THz probes for cutting edge fundamental science. Building on this momentum, we will study how the new technology will advance the state-of-the-art in measuring and controlling magnetic and vibrational states in systems of biomedical, chemical and physical interest. As this Programme goes well beyond what could be achieved by the current technology, it will lead to significant <a class="internal-link" href="https://www.terahertzsystems.org/impact">impact </a>including advances in scientific capability through the availability of compact, precise and highly sensitive THz spectroscopy tools.</p>
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173<p class="callout"><strong>The THz frequency region is the last unexploited part of the electromagnetic spectrum. Now we hope to change that. Our ambition for this Programme is that it will lead to this historically underused part of the electromagnetic spectrum finally achieving its full scientific and commercial potential. We will work with many commercial <a class="internal-link" href="https://www.terahertzsystems.org/impact/partners">partners</a> to achieve this.</strong></p></div>
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224              ESPRC funds £6.5m Coherent Terahertz Systems programme
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226            <time class="portletItemDetails">05 Nov, 2023</time>
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240              IEEE Microwave Photonics Best Student paper award to UCL Photonics PhD student
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256              UK THz Day Presentations Available
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