Fabricating distributed feedback laser gratings with bismuth and gold focused ion beams. - Salmond, B.; John, D. D.; Mitchell, W. J.; Thibeault, B. J.; Richter, T.; Nadzeyka, A.; Mazarov, P.; Meyer, F.; Fridmann, J.; Yu, Y.; Wale, M.; Meredith, W.; et al. (Journal of Vacuum Science & Technology: Part B-Nanotechnology & Microelectronics, 2024)