Our team specializes in the development, production, and evaluation of highly sensitive detectors, antennas, and readout electronics for a diverse range of cosmology experiments. These endeavors capitalize on the extraordinary properties of superconductivity and the principles of microwave engineering. 

We design, fabricate and characterize superconducting detectors for Cosmic Microwave Background experiments. We achieve photon-noise limit sensitivity by using Transition Edge Sensor (TES) bolometers coupled to superconducting antenna that collects signal in a range of 30 GHz ~ 300 GHz. 

A concept for a ground based Stage-IV Cosmic Microwave Background (CMB) experiment, CMB-S4, is emerging to make a definitive measurement of CMB polarization with O(500,000) detectors. We are exploring new approach in detector fabrication to increase fabrication throughput will enable magnitude increase in detector count for Stage-IV experiment. We are working with SeeQC Inc., STAR Cryoelectronics,  Cold Quanta Inc. and Hyperion Optics to combine industry's expertise in large volume manufacturing with detector fabrication knowledge from laboratory. 

Readout electronics needs to amplify very weak signal from thousands of detectors without inducing extra noise. We use low noise superconducting cryogenic amplifier call Superconducting QUantum Interference Device (SQUID) amplifier for a first stage amplifier. Also we readout multiple detectors with a single amplifier to minimize number of parts required. Technique we use is call frequency domain multiplexed readout, where unique frequency is assigned to different detectors just like AM radio station. Our development is focusing on lowering noise, increasing multiplexing factor, and simplifying packaging. 

There are great level of promising developments and excitement around using power of quantum states to enhance computing and science. We have unique experience and knowledge of superconducting fabrication and testing of ultra sensitive sensors. We are collaborating with qubit expert, material science expert and phonon detection expert to find a synergetic topic to apply our know-how to improve performance of qubits.  

LuSEE-Night is a NASA-DOE joint project to deploy radio receive on far side of the moon to look for signal from the Dark Ages. LBNL team is delivering an antenna module to the project. We are scheduled to launch in December 2025 via Commercial Lunar Payload Service