Long Wavelength Detectors and Applications

• 2017 Department of Commerce Bronze Medal Award “For the development and deployment of the world’s first multi-color cameras for measurements of the cosmic microwave background”
• Delivery of multichroic detector arrays at 27/39 GHz, 90/150 GHz, and 150/220 GHz to Advanced ACTPol [1-4].
• Demonstration of microwave SQUID multiplexer for application in Cosmic Microwave Background Imagers [5]. This scheme multiplexes a factor of 10 more detectors as compared to the current state-of-the-art
• Delivery of world’s first Microwave Kinetic Inductance Detector (MKID) arrays to instrument a balloon-borne telescope [6,7]
• Demonstration of TiN-based MKID detector at 1 mm [8]
• Demonstration of a 'tile and trim' lithography approach to the production of MKID arrays [6]
• Successfully designed, fabricated, and delivered TES-based arrays at 280 GHz for the balloon-borne instrument SPIDER [9]. Achieved yield is >95%, which is the highest yet of any large-format TES array [10].
• 1^st on-sky demonstration of microwave SQUID multiplexer in MUSTANG2 coupled to the Green bank telescope [11].
• Photon noise limited sensitivity achieved in TiN-based microwave kinetic inductance detectors [12].

Recent Publications

[1] S. M. Duff et al. “Advanced ACTPol Multichroic Polarimeter Array Fabrication Process for 150 mm Wafers.” Journal of Low Temperature Physics 184 (2016):634. 


[2] S.P Ho et al. “Highly uniform 150 mm diameter multichroic polarimeter array deployed for cmb detection.”, 2017. URL https://doi.org/10.1117/12.2233113.

[3] S. K. Choi et al. “Characterization of the Mid-Frequency Arrays for Advanced ACT- Pol.” ArXiv e-prints (2017). 1711.04841. 


[4] B. J. Koopman et al. “Advanced ACTPol Low Frequency Array: Readout and Characterization of Prototype 27 and 39 GHz Transition Edge Sensors.” ArXiv e-prints (2017). 1711.02594. 


[5] B. Dober et al. “Microwave SQUID multiplexer demonstration for cosmic microwave background imagers.” Applied Physics Letters 111 (2017)(24):243510. 1710.04326. 


[6] C. M. McKenney et al. “Tile-and-trim micro-resonator array fabrication optimized for high multiplexing factors.” ArXiv e-prints (2018). 1803.04275. 


[7] N. Galitzki et al. “The Next Generation BLAST Experiment.” Journal of Astronomical Instrumentation 3 (2014):1440001. 1409.7084. 


[8] J. E. Austermann et al. “Millimeter-Wave Polarimeters Using Kinetic Inductance Detectors for TolTEC and Beyond.” ArXiv e-prints (2018). 1803.03280. 


[9] J. Hubmayr et al. “Design of 280 GHz feedhorn-coupled TES arrays for the balloon- borne polarimeter SPIDER.” In Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy VIII, , vol. 9914, 99140V. 2016. 1606.09396. 


[10] A. S. Bergman et al. “280 GHz Focal Plane Unit Design and Characterization for the SPIDER-2 Suborbital Polarimeter.” ArXiv e-prints (2017). 1711.04169. 


[11] S. M. Stanchfield et al. “Development of a Microwave SQUID-Multiplexed TES Array for MUSTANG-2.” Journal of Low Temperature Physics 184 (2016):460. 


[12] J. Hubmayr et al. “Photon-noise limited sensitivity in titanium nitride kinetic inductance detectors.” Applied Physics Letters 106 (2015)(7):073505. 1406.4010.