Quantum enhanced LIDAR resolution with multi-spatial-mode phase sensitive amplification by Santivanez, Cesar A., Guha, Saikat, Dutton, Zachary, Annamalai, Muthiah, Vasilyev, Michael, Yen, Brent J., Nair, Ranjith, Shapiro, Jeffrey H.

“…The spatial resolution of each system is quantified by its ability to distinguish between the presence of 1 point target versus 2 closely-spaced point targets when minimum error-probability decisions are made from quantum limited measurements. At low (5-10 dB) SNR, we find that a PSA system with a 2.5kWatts pump focused to 25μm × 400μm achieves the same spatial resolution as a baseline system having 5.5 dB higher SNR. …”
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Ultralow-noise modelocked lasers by Jiang, Leaf Alden, 1976-

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Engineering the thin film characteristics for optimal performance of superconducting kinetic inductance amplifiers using a rigorous modelling technique [version 2; peer review: 1 a... by Boon-Kok Tan, Christine Chaumont, Faouzi Boussaha, Javier Navarro Montilla, Joseph Longden

“…Background: Kinetic Inductance Travelling Wave Parametric Amplifiers (KITWPAs) are a variant of superconducting amplifier that can potentially achieve high gain with quantum-limited noise performance over broad bandwidth, which is important for many ultra-sensitive experiments. …”
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A millimeter unilateral finline SIS mixer with a wide IF bandwidth by Zhou, Y

“…Niobium SIS mixers operating at frequencies well below the super- conducting gap (∼680 GHz) have already achieved quantum limited sensitivity. Therefore to further enhance the receiver sensitivity, increasing the Intermediate Frequency (IF) bandwidth of SIS mixers has became crucial. …”

Development of superconducting thin film travelling wave parametric amplifiers by Longden, JC

“…They have been experimentally verified to achieve high gain over broad bandwidth and quantum-limited noise performance with negligible heat dissipation, making them a natural successor to the current generation of semiconductor-based high electron mobility transistor (HEMT) amplifiers, which are the current standard in low-noise amplification. …”