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Optical characterization of OMT-coupled TES bolometers for LiteBIRD

Journal of Low Temperature Physics Springer Nature 209:3-4 (2022) 396-408

Authors:

J Hubmayr, Par Ade, A Adler, E Allys, D Alonso, K Arnold, D Auguste, J Aumont, R Aurlien, Je Austermann, S Azzoni, C Baccigalupi, Aj Banday, R Banerji, Rb Barreiro, N Bartolo, S Basak, E Battistelli, L Bautista, Ja Beall, D Beck, S Beckman, K Benabed, J Bermejo-Ballesteros, M Bersanelli, J Bonis, J Borrill, F Bouchet, F Boulanger, S Bounissou, M Brilenkov, Ml Brown, M Bucher, E Calabrese, M Calvo, P Campeti, A Carones, Fj Casas, A Catalano, A Challinor, V Chan, K Cheung, Y Chinone, C Chiocchetta, Se Clark, L Clermont, S Clesse, J Cliche, F Columbro, Ja Connors

Abstract:

Feedhorn- and orthomode transducer- (OMT) coupled transition edge sensor (TES) bolometers have been designed and micro-fabricated to meet the optical specifications of the LiteBIRD high frequency telescope (HFT) focal plane. We discuss the design and optical characterization of two LiteBIRD HFT detector types: dual-polarization, dual-frequency-band pixels with 195/280 GHz and 235/337 GHz band centers. Results show well-matched passbands between orthogonal polarization channels and frequency centers within 3% of the design values. The optical efficiency of each frequency channel is conservatively reported to be within the range 0.64 - 0.72, determined from the response to a cryogenic, temperature-controlled thermal source. These values are in good agreement with expectations and either exceed or are within 10% of the values used in the LiteBIRD sensitivity forecast. Lastly, we report a measurement of loss in Nb/SiNx/Nb microstrip at 100 mK and over the frequency range 200–350 GHz, which is comparable to values previously reported in the literature.
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First light for GRAVITY Wide

Astronomy & Astrophysics EDP Sciences 665 (2022) a75

Authors:

R Abuter, F Allouche, A Amorim, C Bailet, M Bauböck, J-P Berger, P Berio, A Bigioli, O Boebion, ML Bolzer, H Bonnet, G Bourdarot, P Bourget, W Brandner, Y Clénet, B Courtney-Barrer, Y Dallilar, R Davies, D Defrère, A Delboulbé, F Delplancke, R Dembet, PT de Zeeuw, A Drescher, A Eckart, C Édouard, F Eisenhauer, M Fabricius, H Feuchtgruber, G Finger, NM Förster Schreiber, E Garcia, P Garcia, F Gao, E Gendron, R Genzel, JP Gil, S Gillessen, T Gomes, F Gonté, C Gouvret, P Guajardo, S Guieu, M Hartl, X Haubois, F Haußmann, G Heißel, Th Henning, S Hippler, S Hönig, M Horrobin, N Hubin, E Jacqmart, L Jochum, L Jocou, A Kaufer, P Kervella, H Korhonen, L Kreidberg, S Lacour, S Lagarde, O Lai, V Lapeyrère, R Laugier, J-B Le Bouquin, J Leftley, P Léna, D Lutz, F Mang, A Marcotto, D Maurel, A Mérand, F Millour, N More, H Nowacki, M Nowak, S Oberti, T Ott, L Pallanca, L Pasquini, T Paumard, K Perraut, G Perrin, R Petrov, O Pfuhl, N Pourré, S Rabien, C Rau, S Robbe-Dubois, S Rochat, M Salman, M Schöller, J Schubert, N Schuhler, J Shangguan, T Shimizu, S Scheithauer, A Sevin, F Soulez, A Spang, E Stadler, J Stadler, C Straubmeier, E Sturm, LJ Tacconi, KRW Tristram, F Vincent, S von Fellenberg, S Uysal, F Widmann, E Wieprecht, E Wiezorrek, J Woillez, S Yazici, A Young, G Zins
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Galaxy populations in the Hydra I cluster from the VEGAS survey

Astronomy & Astrophysics EDP Sciences 665 (2022) a105

Authors:

Antonio La Marca, Enrichetta Iodice, Michele Cantiello, Duncan A Forbes, Marina Rejkuba, Michael Hilker, Magda Arnaboldi, Laura Greggio, Chiara Spiniello, Steffen Mieske, Aku Venhola, Marilena Spavone, Giuseppe D’Ago, Maria Angela Raj, Rossella Ragusa, Marco Mirabile, Roberto Rampazzo, Reynier Peletier, Maurizio Paolillo, Nelvy Choque Challapa, Pietro Schipani
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Kiloparsec view of a typical star-forming galaxy when the Universe was ∼1 Gyr old

Astronomy & Astrophysics EDP Sciences 665 (2022) l8

Authors:

R Herrera-Camus, NM Förster Schreiber, SH Price, H Übler, AD Bolatto, RL Davies, D Fisher, R Genzel, D Lutz, T Naab, A Nestor, T Shimizu, A Sternberg, L Tacconi, K Tadaki
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ANDES, the high resolution spectrograph for the ELT: science case, baseline design and path to construction

Proceedings of SPIE--the International Society for Optical Engineering SPIE, the international society for optics and photonics 12184 (2022) 1218424-1218424-16

Authors:

A Marconi, M Abreu, V Adibekyan, V Alberti, S Albrecht, J Alcaniz, M Aliverti, C Allende Prieto, JD Alvarado Gómez, PJ Amado, M Amate, MI Andersen, E Artigau, C Baker, V Baldini, A Balestra, SA Barnes, F Baron, SCC Barros, SM Bauer, M Beaulieu, O Bellido-Tirado, B Benneke, T Bensby, EA Bergin, K Biazzo, A Bik, JL Birkby, N Blind, I Boisse, E Bolmont, M Bonaglia, X Bonfils, F Borsa, A Brandeker, W Brandner, CH Broeg, M Brogi, D Brousseau, A Brucalassi, J Brynnel, LA Buchhave, DF Buscher, A Cabral, G Calderone, R Calvo-Ortega, BL Canto Martins, F Cantalloube, L Carbonaro, G Chauvin, B Chazelas, A-L Cheffot, YS Cheng, A Chiavassa, L Christensen, R Cirami, NJ Cook, RJ Cooke, I Coretti, S Covino, N Cowan, G Cresci, S Cristiani, V Cunha Parro, G Cupani, V D'Odorico, I de Castro Leão, A De, JR De Medeiros, F Debras, M Debus, O Demangeon, M Dessauges-Zavadsky, P Di Marcantonio, F Dionies, R Doyon, J Dunn, D Ehrenreich, JP Faria, C Feruglio, M Fisher, A Fontana, M Fumagalli, T Fusco, J Fynbo, O Gabella, W Gaessler, E Gallo, X Gao, L Genolet, M Genoni, P Giacobbe, E Giro, RS Gonçalves, O Gonzalez, JI González Hernández, F Gracia Témich, MG Haehnelt, C Haniff, A Hatzes, R Helled, HJ Hoeijmakers, P Huke, S Järvinen, A Järvinen, A Kaminski, A Korn, D Kouach, G Kowzan, L Kreidberg, M Landoni, A Lanotte, A Lavail, J Li, J Liske, C Lovis, S Lucatello, D Lunney, M MacIntosh, N Madhusudhan, L Magrini, R Maiolino, L Malo, A Man, T Marquart, EL Marques, AM Martins, CJAP Martins, P Maslowski, C Mason, E Mason, RA McCracken, P Mergo, G Micela, T Mitchell, P Mollière, M Monteiro, D Montgomery, C Mordasini, J Morin, A Mucciarelli, MT Murphy, M N'Diaye, B Neichel, AT Niedzielski, E Niemczura, L Nortmann, P Noterdaeme, N Nunes, L Oggioni, E Oliva, H Önel, L Origlia, G Östlin, E Palle, P Papaderos, G Pariani, J Peñate Castro, F Pepe, L Perreault Levasseur, P Petit, L Pino, J Piqueras, A Pollo, K Poppenhaeger, A Quirrenbach, E Rauscher, R Rebolo, EMA Redaelli, S Reffert, DT Reid, A Reiners, P Richter, M Riva, S Rivoire, C Rodríguez-López, IU Roederer, D Romano, S Rousseau, J Rowe, S Salvadori, N Santos, P Santos Diaz, J Sanz-Forcada, M Sarajlic, J-F Sauvage, S Schäfer, RP Schiavon, TM Schmidt, C Selmi, S Sivanandam, M Sordet, R Sordo, F Sortino, D Sosnowska, SG Sousa, E Stempels, KG Strassmeier, A Suárez Mascareño, A Sulich, X Sun, NR Tanvir, F Tenegi-Sanginés, S Thibault, SJ Thompson, A Tozzi, M Turbet, P Vallée, R Varas, K Venn, J-P Véran, A Verma, M Viel, G Wade, C Waring, M Weber, J Weder, B Wehbe, J Weingrill, M Woche, M Xompero, E Zackrisson, A Zanutta, MR Zapatero Osorio, M Zechmeister, J Zimara
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