Search Results - "Padin, Stephen"

Noise Reduction Methods for Large-scale Intensity-mapping Measurements with Infrared Detector Arrays by Heaton, Grigory, Cook, Walter, Bock, James, Burnham, Jill, Condon, Sam, Hristov, Viktor, Hui, Howard, Kecman, Branislav, Korngut, Phillip, Miyasaka, Hiromasa, Nguyen, Chi, Padin, Stephen, Viero, Marco

“…Intensity-mapping observations measure galaxy clustering fluctuations from spectral–spatial maps, requiring stable noise properties on large angular scales. We…”
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An Optical Pointing Telescope for Radio Astronomy by Assawaworrarit, Sidhi, Padin, Stephen

“…ABSTRACT Design details are given for a stable optical pointing telescope for radio astronomy. The telescope is a 100 mm f/15 refractor with the objective…”
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A Wide Band Tracking Delay for Radio Astronomy by Soares, Schubert, Padin, Stephen F.

“…Design details for a 0.5 to 4 GHz tracking delay for the Owens Valley Millimeter Array are presented. The delay uses a binary sequence of segments ranging from…”
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Impact of Electrical Contacts Design and Materials on the Stability of Ti Superconducting Transition Shape by Yefremenko, Volodymyr, Ade, Peter A. R., Ahmed, Zeeshan, Anderson, Adam J., Austermann, Jason E., Avva, Jessica S., Basu Thakur, Robitan, Bender, Amy N., Benson, Bradford A., Carlstrom, John E., Carter, Faustin W., Cecil, Thomas, Chang, Clarence L., Cliche, Jean-Francois, Cukierman, Ariel, Denison, Edward V., de Haan, Tijmen, Ding, Junjia, Divan, Ralu N. S., Dobbs, Matt A., Dutcher, Daniel, Everett, Wenderline, Foster, Allen, Gannon, Renae N., Gilbert, Adam, Groh, John, Halverson, Nils W., Harke-Hosemann, Angelina H., Harrington, Nicholas L., Henning, Jason W., Hilton, Gene C., Holzapfel, William L., Huang, Nicholas, Irwin, Kent D., Jeong, Oliver B., Jonas, Michelle, Khaire, Trupti, Kofman, Anna M., Korman, Milo, Kubik, Donna L., Kuhlmann, Steve, Kuo, Chao-Lin, Lee, Adrian T., Lowitz, Amy E., Meyer, Stephen S., Michalik, Daniel, Miller, Christina Suzanne, Montgomery, Joshua, Nadolski, Andrew, Natoli, Tyler J., Nguyen, Hogan, Noble, Gavin, Novosad, Valentine, Padin, Stephen, Pan, Zhaodi, Pearson, John, Posada, Chrystian M., Rahlin, Alexandra, Ruhl, John E., Saunders, L. J., Sayre, James T., Shirley, Ian, Shirokoff, Erik D., Smecher, Graeme, Sobrin, Joshua A., Stan, Liliana, Stark, Antony A., Story, Kyle T., Suzuki, Aritoki, Tang, Qing Yang, Thompson, Keith L., Tucker, Carole E., Vale, Leila R., Vanderlinde, Keith, Vieira, Joaquin D., Wang, Gensheng, Whitehorn, Nathan, Yoon, Ki Won, Young, Matt

“…The South Pole Telescope SPT-3G camera utilizes Ti/Au transition edge sensors (TESs). A key requirement for these sensors is reproducibility and long-term…”
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Cryogenic Focus Measurement System for a Wide-Field Infrared Space Telescope by Condon, Samuel S, Padin, Stephen, Bock, James, Hui, Howard, Korngut, Phillip, Nguyen, Chi, Otsby, Jordan

“…Appl. Opt. 63, 3453-3461 (2024) We describe a technique for measuring focus errors in a cryogenic, wide-field, near-infrared space telescope. The measurements…”
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Noise Reduction Methods for Large-scale Intensity-mapping Measurements with Infrared Detector Arrays by Heaton, Grigory, Cook, Walter, Bock, James, Burnham, Jill, Condon, Sam, Hristov, Viktor, Hui, Howard, Kecman, Branislav, Korngut, Phillip, Miyasaka, Hiromasa, Nguyen, Chi, Padin, Stephen, Viero, Marco

“…ApJS 268 44 (2023) Intensity mapping observations measure galaxy clustering fluctuations from spectral-spatial maps, requiring stable noise properties on large…”
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Freeform three-mirror anastigmatic large-aperture telescope and receiver optics for CMB-S4 by Gallardo, Patricio A, Puddu, Roberto, Harrington, Kathleen, Benson, Bradford, Carlstrom, John, Dicker, Simon R, Emerson, Nick, Gudmundsson, Jon E, Limon, Michele, McMahon, Jeff, Nagy, Johanna M, Natoli, Tyler, Niemack, Michael D, Padin, Stephen, Ruhl, John, Simon, Sara M, collaboration, the CMB-S4

“…CMB-S4, the next-generation ground-based cosmic microwave background (CMB) observatory, will provide detailed maps of the CMB at millimeter wavelengths to…”
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Optical design concept of the CMB-S4 large-aperture telescopes and cameras by Gallardo, Patricio A, Benson, Bradford, Carlstrom, John, Dicker, Simon R, Emerson, Nick, Gudmundsson, Jon E, Hills, Richard, Limon, Michele, McMahon, Jeff, Niemack, Michael D, Nagy, Johanna M, Padin, Stephen, Ruhl, John, Simon, Sara M, collaboration, the CMB-S4

“…CMB-S4 -- the next-generation ground-based cosmic microwave background (CMB) experiment - will significantly advance the sensitivity of CMB measurements and…”
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Sidelobe Modeling and Mitigation for a Three Mirror Anastigmat Cosmic Microwave Background Telescope by Gullett, Ian, Benson, Bradford, Besuner, Robert, Bihary, Richard, Carlstrom, John, Emerson, Nick, Gallardo, Patricio A, Gomez, Jillian, King, Cesiley L, Mcmahon, Jeff, May, Jared L, Nagy, Johanna M, Natoli, Tyler, Niemack, Michael D, Okun, Kate, Padin, Stephen, Ruhl, John E, Wollack, Edward J, Zivick, Jeff

“…Appl. Opt. 62, 4334-4341 (2023) Telescopes measuring cosmic microwave background (CMB) polarization on large angular scales require exquisite control of…”
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A wideband analog continuum correlator for radio astronomy by Padin, S.

“…Design details for a 1-GHz bandwidth analog continuum cross-correlator for the Owens Valley Millimeter Array are presented. The correlator uses a pair of…”
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A wideband analog correlator for microwave background observations by Padin, S., Cartwright, J.K., Shepherd, M.C., Yamasaki, J.K., Holzapfel, W.L.

“…Design and performance details are given for a 10-GHz bandwidth analog filterbank correlator with 1-GHz spectral resolution. The correlator is based on a 1-GHz…”
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A measurement of the coupling between close-packed shielded cassegrain antennas by Padin, S., Cartwright, J.K., Joy, M., Meitzler, J.C.

“…Design and performance details are given for a 0.9-m diameter shielded cassegrain antenna, which will be used in a 13-element close-packed array, The array is…”
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CMB-S4 Technology Book, First Edition by Abitbol, Maximilian H, Ahmed, Zeeshan, Barron, Darcy, Thakur, Ritoban Basu, Bender, Amy N, Benson, Bradford A, Bischoff, Colin A, Bryan, Sean A, Carlstrom, John E, Chang, Clarence L, Chuss, David T, Crowley, Kevin T, Cukierman, Ari, de Haan, Tijmen, Dobbs, Matt, Essinger-Hileman, Tom, Filippini, Jeffrey P, Ganga, Ken, Gudmundsson, Jon E, Halverson, Nils W, Hanany, Shaul, Henderson, Shawn W, Hill, Charles A, Ho, Shuay-Pwu P, Hubmayr, Johannes, Irwin, Kent, Jeong, Oliver, Johnson, Bradley R, Kernasovskiy, Sarah A, Kovac, John M, Kusaka, Akito, Lee, Adrian T, Maria, Salatino, Mauskopf, Philip, McMahon, Jeff J, Moncelsi, Lorenzo, Nadolski, Andrew W, Nagy, Johanna M, Niemack, Michael D, O'Brient, Roger C, Padin, Stephen, Parshley, Stephen C, Pryke, Clement, Roe, Natalie A, Rostem, Karwan, Ruhl, John, Simon, Sara M, Staggs, Suzanne T, Suzuki, Aritoki, Switzer, Eric R, Tajima, Osamu, Thompson, Keith L, Timbie, Peter, Tucker, Gregory S, Vieira, Joaquin D, Vieregg, Abigail G, Westbrook, Benjamin, Wollack, Edward J, Yoon, Ki Won, Young, Karl S, Young, Edward Y

“…CMB-S4 is a proposed experiment to map the polarization of the Cosmic Microwave Background (CMB) to nearly the cosmic variance limit for angular scales that…”
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The Design and Performance of Wideband Radio Interferometers by Padin, Stephen

“…The design of wideband, single-baseline interferometers using single-bit digital and analogue signal processing techniques is discussed in detail. The effects…”
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A cooled 1-2 GHz balanced HEMT amplifier by Padin, S., Ortiz, G.G.

“…The design details and measurement results for a cooled 1-GHz-bandwidth L-band high electron mobility transistor (HEMT) amplifier are presented. No…”
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SuperSpec: design concept and circuit simulations by Kovács, Attila, Barry, Peter S, Bradford, Charles M, Chattopadhyay, Goutam, Day, Peter, Doyle, Simon, Hailey-Dunsheath, Steve, Hollister, Matthew, McKenney, Christopher, LeDuc, Henry G, Llombart, Nuria, Marrone, Daniel P, Mauskopf, Philip, O'Brient, Roger, Padin, Stephen, Swenson, Loren J, Zmuidzinas, Jonas

“…Proc. SPIE, 8452, 84522G (2012) SuperSpec is a pathfinder for future lithographic spectrometer cameras, which promise to energize extra-galactic astrophysics…”
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MKID development for SuperSpec: an on-chip, mm-wave, filter-bank spectrometer by Shirokoff, Erik, Barry, Peter S, Bradford, Charles M, Chattopadhyay, Goutam, Day, Peter, Doyle, Simon, Hailey-Dunsheath, Steve, Hollister, Matthew I, Kovács, Attila, McKenney, Christopher, Leduc, Henry G, Llombart, Nuria, Marrone, Daniel P, Mauskopf, Philip, O'Brient, Roger, Padin, Stephen, Reck, Theodore, Swenson, Loren J, Zmuidzinas, Jonas

“…Proc. SPIE, 8452, 84520R (2012) SuperSpec is an ultra-compact spectrometer-on-a-chip for millimeter and submillimeter wavelength astronomy. Its very small…”
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Global 3- and 7-mm VLBI Observations of OJ 287 by Tateyama, Claudio E., Inoue, Makoto, Krichbaum, Thomas P., Bååth, Lars B., Kameno, Seiji, Rogers, Alan E. E., Alberdi, Antonio, Backer, Don C., Bartel, Norbert, Booth, Roy S., Burke, Bernard F., Carlstrom, John E., Dhawan, Vivek, Dickman, Robert L., Emerson, Darrel T., Hirabayashi, Hisashi, Hodges, Mark W., Graham, David A., Johnston, Kenneth J., Kobayashi, Hideyuki, Kus, Andrzej J., Padin, Stephen, Plambeck, Richard L., Predmore, C. Read, Quirrenbach, Andreas, Lawrence, Charles R., Lamb, James, Marcaide, Juan M., Morimoto, Masak, Ronnang, Bernt O., Shapiro, Irwin I., Spencer, John H., Witzel, Arno, Woody, David, Wright, Melvyn C. H.

“…We present new results from global VLBI observations of the highly active blazar OJ 287 at 7 and 3 mm wavelengths. We show the first map of the mas to sub-mas…”
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A fast 2-bit digitizer for radio astronomy by Padin, S., Ewing, M.S.

“…The design and performance details for a 2-bit digitizer operating at a 250-MHz clock rate are presented. The digitizer is part of a new correlator system for…”
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