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Your search keyword '"Niemack, M. D."' showing total 7 results
Start Over Author "Niemack, M. D." Publication Type Magazines
7 results on '"Niemack, M. D."'

1. Prime-Cam: a first-light instrument for the CCAT-prime telescope

Author

Zmuidzinas, Jonas, Gao, Jian-Rong, Vavagiakis, E. M., Ahmed, Z., Ali, A., Basu, K., Battaglia, N., Bertoldi, F., Bond, R., Bustos, R., Chapman, S. C., Chung, D., Coppi, G., Cothard, N. F., Dicker, S., Duell, C. J., Duff, S. M., Erler, J., Fich, M., Galitzki, N., Gallardo, P. A., Henderson, S. W., Herter, T. L., Hilton, G., Hubmayr, J., Irwin, K. D., Koopman, B. J., McMahon, J., Murray, N., Niemack, M. D., Nikola, T., Nolta, M., Orlowski-Scherer, J., Parshley, S. C., Riechers, D. A., Rossi, K., Scott, D., Sierra, C., Silva-Feaver, M., Simon, S. M., Stacey, G. J., Stevens, J. R., Ullom, J. N., Vissers, M. R., Walker, S., Wollack, E. J., Xu, Z., and Zhu, N.

Published
2018
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2. Cold optical design for the large aperture Simons' Observatory telescope

Author

Marshall, Heather K., Spyromilio, Jason, Dicker, S. R., Gallardo, P. A., Gudmudsson, J. E., Mauskopf, P. D., Ali, A., Ashton, P. C., Coppi, G., Devlin, M. J., Galitzki, N., Ho, S. P., Hill, C. A., Hubmayr, J., Keating, B., Lee, A. T., Limon, M., Matsuda, F., McMahon, J., Niemack, M. D., Orlowski-Scherer, J. L., Piccirillo, L., Salatino, M., Simon, S. M., Staggs, S. T., Thornton, R., Ullom, J. N., Vavagiakis, E. M., Wollack, E. J., Xu, Z., and Zhu, N.

Published
2018
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3. Characterization of the Atacama B-mode Search

Author

Holland, Wayne S., Zmuidzinas, Jonas, Simon, S. M., Raghunathan, S., Appel, J. W., Becker, D. T., Campusano, L. E., Cho, H. M., Essinger-Hileman, T., Ho, S. P., Irwin, K. D., Jarosik, N., Kusaka, A., Niemack, M. D., Nixon, G. W., Nolta, M. R., Page, L. A., Palma, G. A., Parker, L. P., Sievers, J. L., Staggs, S. T., and Visnjic, K.

Published
2014
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4. Large-aperture wide-bandwidth antireflection-coated silicon lenses for millimeter wavelengths

Author

Datta, R., Munson, C. D., Niemack, M. D., McMahon, J. J., Britton, J., Wollack, E. J., Beall, J., Devlin, M. J., Fowler, J., Gallardo, P., Hubmayr, J., Irwin, K., Newburgh, L., Nibarger, J. P., Page, L., Quijada, M. A., Schmitt, B. L., Staggs, S. T., Thornton, R., and Zhang, L.

Abstract

The increasing scale of cryogenic detector arrays for submillimeter and millimeter wavelength astrophysics has led to the need for large aperture, high index of refraction, low loss, cryogenic refracting optics. Silicon with n=3.4, low loss, and high thermal conductivity is a nearly optimal material for these purposes but requires an antireflection (AR) coating with broad bandwidth, low loss, low reflectance, and a matched coefficient of thermal expansion. We present an AR coating for curved silicon optics comprised of subwavelength features cut into the lens surface with a custom three-axis silicon dicing saw. These features constitute a metamaterial that behaves as a simple dielectric coating. We have fabricated silicon lenses as large as 33.4 cm in diameter with micromachined layers optimized for use between 125 and 165 GHz. Our design reduces average reflections to a few tenths of a percent for angles of incidence up to 30° with low cross polarization. We describe the design, tolerance, manufacture, and measurements of these coatings and present measurements of the optical properties of silicon at millimeter wavelengths at cryogenic and room temperatures. This coating and lens fabrication approach is applicable from centimeter to submillimeter wavelengths and can be used to fabricate coatings with greater than octave bandwidth.

Published
2013

5. Optical design of the Atacama Cosmology Telescope and the Millimeter Bolometric Array Camera

Author

Fowler, J. W., Niemack, M. D., Dicker, S. R., Aboobaker, A. M., Ade, P. A. R., Battistelli, E. S., Devlin, M. J., Fisher, R. P., Halpern, M., Hargrave, P. C., Hincks, A. D., Kaul, M., Klein, J., Lau, J. M., Limon, M., Marriage, T. A., Mauskopf, P. D., Page, L., Staggs, S. T., Swetz, D. S., Switzer, E. R., Thornton, R. J., and Tucker, C. E.

Abstract

The Atacama Cosmology Telescope is a 6 m telescope designed to map the cosmic microwave background simultaneously at 145, 215, and 280 GHz with arcminute resolution. Each frequency will have a 32 by 32 element focal plane array of transition edge sensor bolometers. The telescope and the cold reimaging optics are optimized for millimeter-wave observations with these sensitive detectors. The design of each is described.

Published
2007

6. Survey strategy optimization for the Atacama Cosmology Telescope

Author

Peck, Alison B., Seaman, Robert L., Benn, Chris R., De Bernardis, F., Stevens, J. R., Hasselfield, M., Alonso, D., Bond, J. R., Calabrese, E., Choi, S. K., Crowley, K. T., Devlin, M., Dunkley, J., Gallardo, P. A., Henderson, S. W., Hilton, M., Hlozek, R., Ho, S. P., Huffenberger, K., Koopman, B. J., Kosowsky, A., Louis, T., Madhavacheril, M. S., McMahon, J., Næss, S., Nati, F., Newburgh, L., Niemack, M. D., Page, L. A., Salatino, M., Schillaci, A., Schmitt, B. L., Sehgal, N., Sievers, J. L., Simon, S. M., Spergel, D. N., Staggs, S. T., van Engelen, A., Vavagiakis, E. M., and Wollack, E. J.

Published
2016
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7. ACTPol: on-sky performance and characterization

Author

Holland, Wayne S., Zmuidzinas, Jonas, Grace, E., Beall, J., Bond, J. R., Cho, H. M., Datta, R., Devlin, M. J., Dünner, R., Fox, A. E., Gallardo, P., Hasselfield, M., Henderson, S., Hilton, G. C., Hincks, A. D., Hlozek, R., Hubmayr, J., Irwin, K., Klein, J., Koopman, B., Li, D., Lungu, M., Newburgh, L., Nibarger, Jo. P., Niemack, M. D., Maurin, L., McMahon, J., Naess, S., Page, L. A., Pappas, C., Schmitt, B. L., Sievers, J., Staggs, S. T., Thornton, R., Van Lanen, J., and Wollack, E. J.

Published
2014
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