Mitsubishi Electric Develops Compact, High-energy Sub-nanosecond-pulse Deep-ultraviolet Laser System

Miniaturized design will support innovation in drug discovery, cancer treatment and other diverse fields

Mitsubishi Electric Corporation (TOKYO: 6503) announced today that it has developed, in collaboration with the Institute of Physical and Chemical Research (RIKEN) and the Institute for Molecular Science (IMS) of the National Institutes of Natural Sciences, a high-energy short-pulse (sub-nanosecond) deep ultraviolet (DUV) wavelength laser system that achieves an output energy of 235 millijoules, the world’s highest class pulse energy. The compact and portable laser system has been installed in a dedicated area of RIKEN’s facility at IMS in Japan, where it will be used for accelerator research and development.

Sub-nanosecond pulses were achieved by using a microchip laser capable of generating extremely short pulses, and high energy output was realized by optimizing the beam diameter. In addition, co-developed their Distributed Face Cooling technology is implemented in a high-heat dissipation chip developed by RIKEN and IMS, enabling the joule-class laser to operate at room temperature, unlike conventional high-power lasers that require low-temperature cooling.

Going forward, Mitsubishi Electric will continue to advance its laser acceleration technology and laser system miniaturization, thereby contributing to technological innovation in a wide range of fields.

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