This paper by Handel, presented at the International Symposium on Single Photon based Quantum Technologies in Berlin, discusses quantum 1/f optimization of resonant and nonresonant sensors using quantum well infrared detectors as an example. The research demonstrates design principles for minimizing quantum 1/f noise in both resonant frequency-shift sensors and nonresonant amplitude-sensing photodetectors, showing how quantum well parameters, doping profiles, and operating conditions can be optimized to approach fundamental quantum noise limits in high-sensitivity detection applications.