Ms. Qing Yang Tang Profile

Qing Yang Tang

at Univ of Chicago

SPIE Involvement:

Author

Publications (4)

Proceedings Article | 10 July 2018 Presentation

On-chip narrow-band filters for antenna-coupled LEKIDs (Conference Presentation)

Amber Hornsby, Peter Barry, Simon Doyle, Anna Kofman, Paul Moseley, Andrew Nadolski, Sam Rowe, Erik Shirokoff, Qing Tang, Joaquin Vieira

Proceedings Volume 10708, 107081J (2018) https://doi.org/10.1117/12.2313930

KEYWORDS: Sensors, Prototyping, Microwave radiation, Inductance, Antennas, Multiplexers, Dielectrics, Optical filters, Sensor performance, Atmospheric modeling

Read Abstract +

Proceedings Article | 10 July 2018 Presentation

Antenna-coupled lumped-element ALD titanium nitride KIDs for CMB instruments (Conference Presentation)

Erik Shirokoff, Peter Barry, Qing Yang Tang, Rong Nie

Proceedings Volume 10708, 107081M (2018) https://doi.org/10.1117/12.2314025

KEYWORDS: Atomic layer deposition, Titanium, Sensors, Inductance, Antennas, Microwave radiation, Superconductors, Polarization, Atmospheric sensing, Cryogenics

Read Abstract +

Future ground-based cosmic microwave background (CMB) experiments will require more than $10^5$ polarization sensitive pixels covering multiple atmospheric bands. The scientific potential for such an experiment is impressive; however, the technical challenges are daunting: such an instrument will require square meters of focal plane covered in background limited cryogenic detectors and a dramatic increase in readout capability. We are developing novel kinetic inductance detectors (KIDs) optimized for this purpose. These devices use a twin-slot microwave antenna, superconducting Nb transmission line, and a novel coupling scheme that deposits mm-wavelength power onto a high-resistivity meander deposited as the first layer on a bare Si wafer. This architecture allows us to independently adjust the detector and antenna properties and to pursue multi-band designs. We have fabricated superconducting resonators made from atomic layer deposited (ALD) titanium nitride (TiN), with thicknesses ranging from 3 to 40 nm. We find a strong dependence of transition temperature on thickness, from 0.6 to 4.2 K for our thinnest and thickest films, respectively. In dark measurements, we find internal quality factors that range from $10^4$ to $7\times 10^5$ depending on film thickness, and kinetic inductance as high as 8 nH/square. The very small volumes and high kinetic inductance make it possible to engineer extremely sensitive detectors with inductor volumes approaching a few cubic microns that operate at readout frequencies of tens to hundreds of MHz. By taking advantage of the large fractional bandwidth available at low frequencies, we expect to achieve multiplexing densities that exceed that of state of the art TES arrays even without further improvements in film quality factor. We will present the characterization of film properties and dark devices, as well as well as initial optical results for antenna coupled single-band and single-pol devices. We will also discuss designs and sensitivity projections for future dual-pol and multi-band arrays ready for deployment in near-future CMB instruments.

Proceedings Article | 20 July 2016 Paper

Integrated performance of a frequency domain multiplexing readout in the SPT-3G receiver

A. Bender, P. A. Ade, A. Anderson, J. Avva, Z. Ahmed, K. Arnold, J. Austermann, R. Basu Thakur, B. Benson, L. Bleem, K. Byrum, J. Carlstrom, F. Carter, C. Chang, H. M. Cho, J. F. Cliche, T. Crawford, A. Cukierman, D. Czaplewski, J. Ding, R. Divan, T. de Haan, M. A. Dobbs, D. Dutcher, W. Everett, A. Gilbert, J. Groh, R. Guyser, N. Halverson, A. Harke-Hosemann, N. Harrington, K. Hattori, J. Henning, G. Hilton, W. Holzapfel, N. Huang, K. Irwin, O. Jeong, T. Khaire, M. Korman, D. Kubik, C. L. Kuo, A. Lee, E. Leitch, S. Lendinez, S. Meyer, C. Miller, J. Montgomery, A. Nadolski, T. Natoli, H. Nguyen, V. Novosad, S. Padin, Z. Pan, J. Pearson, C. Posada, A. Rahlin, C. Reichardt, J. Ruhl, B. Saliwanchik, J. Sayre, J. Shariff, Ian Shirley, E. Shirokoff, G. Smecher, J. Sobrin, L. Stan, A. Stark, K. Story, A. Suzuki, Q. Y. Tang, K. Thompson, C. Tucker, K. Vanderlinde, J. Vieira, G. Wang, N. Whitehorn, V. Yefremenko, K. W. Yoon

Proceedings Volume 9914, 99141D (2016) https://doi.org/10.1117/12.2232146

KEYWORDS: Receivers, Bolometers, Multiplexing, Sensors, Electronics, Cryogenics, Resistance, Superconductors, Physics, Filtering (signal processing)

Read Abstract +

Proceedings Article | 19 July 2016 Paper

Large arrays of dual-polarized multichroic TES detectors for CMB measurements with the SPT-3G receiver

Chrystian Posada, Peter A. Ade, Adam Anderson, Jessica Avva, Zeeshan Ahmed, Kam Arnold, Jason Austermann, Amy Bender, Bradford Benson, Lindsey Bleem, Karen Byrum, John Carlstrom, Faustin Carter, Clarence Chang, Hsiao-Mei Cho, Ari Cukierman, David Czaplewski, Junjia Ding, Ralu Divan, Tijmen de Haan, Matt Dobbs, Daniel Dutcher, Wenderline Everett, Renae Gannon, Robert Guyser, Nils Halverson, Nicholas Harrington, Kaori Hattori, Jason Henning, Gene Hilton, William Holzapfel, Nicholas Huang, Kent Irwin, Oliver Jeong, Trupti Khaire, Milo Korman, Donna Kubik, Chao-Lin Kuo, Adrian Lee, Erik Leitch, Sergi Lendinez Escudero, Stephan Meyer, Christina Miller, Joshua Montgomery, Andrew Nadolski, Tyler Natoli, Hogan Nguyen, Valentyn Novosad, Stephen Padin, Zhaodi Pan, John Pearson, Alexandra Rahlin, Christian Reichardt, John Ruhl, Benjamin Saliwanchik, Ian Shirley, James Sayre, Jamil Shariff, Erik Shirokoff, Liliana Stan, Antony Stark, Joshua Sobrin, Kyle Story, Aritoki Suzuki, Qing Yang Tang, Ritoban Thakur, Keith Thompson, Carole Tucker, Keith Vanderlinde, Joaquin Vieira, Gensheng Wang, Nathan Whitehorn, Volodymyr Yefremenko, Ki Won Yoon

Proceedings Volume 9914, 991417 (2016) https://doi.org/10.1117/12.2232912

KEYWORDS: Sensors, Receivers, Bolometers, Physics, Niobium, Technetium, Semiconducting wafers, Silicon, Antennas, Detector arrays

Read Abstract +

Detectors for cosmic microwave background (CMB) experiments are now essentially background limited, so a straightforward alternative to improve sensitivity is to increase the number of detectors. Large arrays of multichroic pixels constitute an economical approach to increasing the number of detectors within a given focal plane area. Here, we present the fabrication of large arrays of dual-polarized multichroic transition-edge-sensor (TES) bolometers for the South Pole Telescope third-generation CMB receiver (SPT-3G). The complete SPT-3G receiver will have 2690 pixels, each with six detectors, allowing for individual measurement of three spectral bands (centered at 95 GHz, 150 GHz and 220 GHz) in two orthogonal polarizations. In total, the SPT-3G focal plane will have 16140 detectors. Each pixel is comprised of a broad-band sinuous antenna coupled to a niobium microstrip transmission line. In-line filters are used to define the different band-passes before the millimeter-wavelength signal is fed to the respective Ti/Au TES sensors. Detectors are read out using a 64x frequency domain multiplexing (fMux) scheme. The microfabrication of the SPT-3G detector arrays involves a total of 18 processes, including 13 lithography steps. Together with the fabrication process, the effect of processing on the Ti/Au TES’s Tc is discussed. In addition, detectors fabricated with Ti/Au TES films with Tc between 400 mK 560 mK are presented and their thermal characteristics are evaluated. Optical characterization of the arrays is presented as well, indicating that the response of the detectors is in good agreement with the design values for all three spectral bands (95 GHz, 150 GHz, and 220 GHz). The measured optical efficiency of the detectors is between 0.3 and 0.8. Results discussed here are extracted from a batch of research of development wafers used to develop the baseline process for the fabrication of the arrays of detectors to be deployed with the SPT-3G receiver. Results from these research and development wafers have been incorporated into the fabrication process to get the baseline fabrication process presented here. SPT-3G is scheduled to deploy to the South Pole Telescope in late 2016.

View contact details

UPDATE YOUR PROFILE

Is this your profile? Update it now.

Sign into your SPIE.org account

Don’t have a profile and want one?

Create an account on SPIE.org

Keywords/Phrases

Search In:

Publication Years