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The world's first tunable diamond Raman laser was born
**Abstract**
Element Six recently shared exciting progress in a high-power laser project developed in collaboration with the University of Strathclyde. The team has successfully created the world's first tunable diamond Raman laser and continuous-wave laser, marking a major milestone in laser technology. This breakthrough leverages Element Six’s advanced synthetic diamond materials, which have proven to be ideal for high-performance solid-state lasers. The innovation is already showing promise in internal cavity devices and other specialized applications.
Founded in 1796, the University of Strathclyde has long been a leader in photonics research. Since 2006, it has worked closely with Element Six to develop high-performance optical components using synthetic diamond. The material was chosen for its exceptional thermal conductivity and wide spectral transparency—qualities that make it highly suitable for advanced laser systems. These properties help reduce heat buildup and improve efficiency, making diamond an essential component in next-generation laser engineering.
Dr. Alan Kemp, a senior researcher at Strathclyde, highlighted the significance of the development: “While tunable Raman lasers have been tested before, previous materials had poor thermal performance, limiting their power output. Diamond, with its superior thermal properties, allows for much higher power in regions where traditional lasers struggle. This opens up new possibilities in solid-state laser engineering and even in cutting-edge fields like precision medical and industrial applications.†He added that this success has strengthened the partnership between the university and Element Six, encouraging further research into diamond-based technologies.
The research team achieved Raman laser operation by placing synthetic diamond inside a laser cavity. Because the diamond from Element Six has extremely low light loss, the system doesn’t require high-intensity pulsed lasers during operation, allowing for direct Raman laser generation. This advancement simplifies the setup and improves reliability, enabling significant technical improvements in continuously operating lasers. Applications such as trace gas detection and complex eye surgeries stand to benefit greatly from this innovation.
To fine-tune the laser’s output, the team used a tunable semiconductor disk laser, while Element Six’s single-crystal diamond heatsink helped manage thermal dissipation. By embedding a diamond piece into the laser cavity, they were able to produce a fully tunable diamond Raman laser. This flexibility makes the technology adaptable to a wide range of scientific and industrial needs.
Adrian Wilson, Head of Technology at Element Six, expressed his enthusiasm about the collaboration: “We’ve worked with institutions like Strathclyde for eight years, and it’s been a rewarding partnership. Our synthetic diamonds have low light loss and birefringence, which are crucial for their research. Together, we’ve made a breakthrough in Raman laser technology, and we’re excited to continue exploring new innovations with them in the future.â€
This achievement not only showcases the potential of synthetic diamond in laser systems but also highlights the importance of interdisciplinary collaboration in pushing the boundaries of science and technology.