Creating the energy of the sun in California: laser fusion using G&H crystal technology

On December 5th, 2022, the Lawrence Livermore National Laboratory (LLNL) through its National Ignition Facility (NIF) achieved fusion ignition using inertial confinement fusion (ICF) above breakeven for the first time in history. This powerful laser uses G&H’s self-grown KDP and KD*P crystals, components found in the laser’s Plasma Electrode Pockels Cell (PEPC) and the final optics assembly that helped to consistently deliver the necessary laser energy levels required to achieve fusion ignition. G&H representatives recently visited NIF, witnessing the latest developments on optics and photonics that led to the breakthrough in fusion energy generated.

“G&H crystals play an important role in the success of NIF’s experimentation process. Our KD*P crystals are responsible for converting the infrared laser energy into ultraviolet, that ultimately is focused onto the target to create the necessary X-rays responsible for starting the fusion process. Our unique crystal growth capability facilitates LLNL’s pursuit of fusion ignition – which has been a scientific grand challenge,” says Dr. Matthew Whittaker, Crystal Growth and ICF Manager at G&H. “We are committed to continue supporting the next steps and expansion of this technology toward a clean energy future.”

“Pushing the performance envelope in optics and photonics has always been a driving force behind our R&D efforts, with crystal growth for ICF being core to our technology roadmap” says Stratos Kehayas, President of Photonics at G&H. “As LLNL scientists focus on constantly improving yield on NIF and supporting other missions, we will be here to support them with our newest innovations in terms of crystal optics.”