LiTaO3pyroelectric detectors have been fabricated in a novel complementary domain configuration that reduces the interference from vibrational noise sources and from changes in ambient temperature by over an order of magnitude relative to the performance of conventional pyroelectric detectors. Detectors made in this complementary domain configuration exhibitD’s in excess of 109cm Hz1/2 W−1, and the measuredD’s degrade less than 10% in the presence of accelerations as great as 0.05gin a 1‐Hz bandwidth, or temperature changes of 10 °C/min.