The following is a short selection from a large number of papers about or related to NFIRAOS. Also see the references therein.
"Pyramid WFS Tolerance Study for NFIRAOS NGS AO", L. Wang, J-P. Veran and B. Ellerbroek, AO4ELT5 Proceedings (2017)
"NFIRAOS adaptive optics for the Thirty Meter Telescope", J. Crane et al., Proc. SPIE 10703, Adaptive Optics Systems V (2018)
"The Real-Time controller (RTC) for the Narrow Field Infrared Adaptive Optics System (NFIRAOS) for TMT final design", J. Dunn et al., Proc. SPIE 10703, Adaptive Optics Systems VI (2018)
"Optimizing multi-LGS WFS AO performance in the context of sodium profile evolution and non-common path aberration", L. Wang et al., Proc. SPIE 10703, Adaptive Optics Systems VI (2018)
"Integrated Modeling of NFIRAOS: Characterizing performance in the presence of vibration", J. Fitzsimmons et al., AO4ELT6 Proceedings (2019)
"Adaptive Optics Program Update at TMT”, C. Boyer, AO4ELT6 Proceedings (2019)
"CO2-based refrigeration system for the NFIRAOS optics enclosure", A. Densmore et al., Proc. SPIE 11447, Ground-based and Airborne Instrumentation for Astronomy VIII (2020)
"The Herzberg Astronomy and Astrophysics Research Centre's vibration measurement capabilities with applications to astronomical instrumentation", P. W. Byrnes et al., Proc. SPIE 11445, Ground-based and Airborne Telescopes VIII (2020)
"Fast modulation and dithering for the NFIRAOS pyramid wavefront sensor", E. Chapin et al., Proc. SPIE 11451, Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation IV (2020)