Summary of the impact

Pound-Drever-Hall (PDH) locking, developed into a practical technique by researchers at the University of Glasgow, is the ubiquitous method for the precise frequency control of stable laser systems. This control is central to laser products from companies such as Toptica and Newport, and has an estimated global annual market in excess of £5M. The PDH stabilisation technique is essential for the operation of the time standards maintained in all of the world's Governmental Metrological Standards Laboratories (e.g. NPL, NIST, BIPM) and finds applications in inspection tools in the semiconductor industry and deep UV lasers for UV-Raman spectroscopy.

Summary of the impact

The commercialisation of Quantum Cascade Lasers (QCL) and the associated novel fabrication processes developed at the University of Glasgow has provided Compound Semiconductor Technologies Global Ltd (CSTG) with a new foundry product supplying quantum cascade lasers for gas sensing, safety and security, and military applications. This resulted in 40% turnover growth from 2010-2012 and the company is now recognised as a global leader in QCLs and their fabrication. Based on University of Glasgow research, the company has created a manufacturing toolbox for the production of a wide variety of QCL chip designs. CSTG has also achieved a world first, manufacturing QCLs for systems that detect explosives at a safe distance and can counter heat-seeking missile attacks on aircraft.

Summary of the impact

New commercial gas sensing technology developed from research at the University of Strathclyde brings extensive technical, operational, safety and cost benefits to applications such as mine safety and leak detection in methane production, storage, piping and transport systems. World-wide commercial sales (in Japan, China and the USA) began in late 2010 through a spin out company, OptoSci Ltd. Sales are growing and have amounted to a total of £250k since launch plus a customisation contract for £193k, leading to jobs sustainability and growth. In addition to economic impacts, the technology also brings health and safety benefits in the gas distribution and mining industries through human safety assurance in the event of gas leaks / build up.

Summary of the impact

A range of techniques based on laser physics and developed since 1993 by the group of Prof Telle in our analytical laser spectroscopy unit (ALSU) has led to:

• Founding a spin-off company, Applied Photonics which produces remote-sensing products employing laser spectroscopy to detect the chemical composition of unknown samples aimed at the military and nuclear energy industry. This technology has allowed multi-million pound savings on the operational costs of nuclear plants due to their functionality in normally inaccessible radioactive environments thus avoiding the need for a power station shutdown.
• Establishing a laboratory in the Atomic Weapons Establishment (AWE) dedicated to the stewardship of UK's nuclear weapons stockpile and chemical explosives by detecting isotopic abundances in uranium samples and analysing the composition of munitions deteriorating in desert environments;
• Assisting the design and development of a new product line of Spectrum Technologies, a market-leading company which removes specialised enamel insulation from conductors used in the aerospace industry.

Summary of the impact

Research at the University of Manchester on laser cleaning of Ti alloys has resulted in practical implementation of the technology at Rolls-Royce for the automatic preparation of surfaces prior to electron beam welding. This has been applied to 24 different aero-engine component types including compressor drums across most current engine families. This has resulted in close to 100% `first time right' aero-engine component welds. The technology is also being adopted by BAE Systems to replace chemical cleaning during airframe manufacture. The elimination of manual and chemical cleaning processes results in savings of several million pounds per annum.

Summary of the impact

Commercialisation of high optical quality diamond by Element Six Ltd (2010 on) and of diamond- enabled lasers by M Squared Lasers Ltd (2012 on) has been made possible by underpinning research on laser engineering and optical characterisation at the University of Strathclyde. [text removed for publication] Markets for this material include thermal management of lasers to enable higher powers and high-performance laser output windows. [text removed for publication]

Summary of the impact

Research in solid state lasers and non-linear optics in the Department of Physics has led to the creation of innovative laser companies in Glasgow serving global scientific and industrial markets. World-leading products have opened up applications in biomedical imaging, security, defence, pollution monitoring, material processing and fundamental spectroscopy. The companies Coherent Scotland Ltd and M Squared Lasers Ltd can trace a direct link to the research in the Department of Physics and are the central theme of this case study. Since 2008, these two companies have created an estimated 600 person years of employment and £135M of sales from products underpinned by research undertaken at Strathclyde. The wider cluster of companies, researching, designing and developing laser products, including Thales Optronics and more recently the Fraunhofer Centre for Applied Photonics, which has a close working relationship with the University, has made Glasgow one of the leading European centres for innovative laser manufacture.

Summary of the impact

This is an example of early economic impact where research on various aspects of laser engineering has resulted in the development of inexpensive, compact, efficient and user-friendly laser sources. An example is the incorporation of quantum dot structures into semiconductor laser architectures, with these replacing much larger and more expensive systems, with a range of applications in areas such as microscopy, biomedical diagnosis and therapy. This work has led to the generation of key know-how and patents that have been subsequently licensed as well as resulting in a variety of laser-related products being brought to market. Additionally, it has resulted in extra staff being employed at one of our partner companies.

Summary of the impact

Impact: Economic gains / altered business practices.

Research on ultrafast lasers has led to the development of new products and services and has been pivotal in the development of a whole field of new technology.

Significance: The research underpins the product development of a range of world leading companies including Femtolasers, Newport Spectra-Physics and Menlo Systems.

Reach: The companies that use the technology represent all of the leading players in the solid-state femtosecond laser field, a marketplace worth more than $250M annually.

Beneficiaries: The impact presents economic gains to the companies involved and underlies many applications in e.g. biology and medicine, providing significant benefits to the public at large.

Attribution: The research was performed by Professor Sibbett's group.

Summary of the impact

The performance of absolute distance measuring systems has been improved in terms of accuracy, traceability, reliability and cost through the introduction of new methodology arising from research at the University of Oxford. This has brought commercial benefit to a German company making measurement systems, through the creation of a new product line. New capabilities for measurement have been delivered to a first customer in Germany. The research has also resulted in the establishment of new activity at the National Physical Laboratory, and influenced UK and European technology roadmaps for future manufacturing.