Simulations and performance of the QUBIC optical beam combiner

C. O'Sullivan; D. Burke; D. Gayer; J. D. Murphy; S. Scully; M. De Leo; M. De Petris; A. Mattei; A. Zullo; A. Mennella; M. Zannoni; N. Bleurvacq; C. Chapron; J. Ch Hamilton; M. Piat; P. Ade; G. Amico; D. Auguste; J. Aumont; S. Banfi; G. Barbarán; P. Battaglia; E. Battistelli; A. Baù; B. Bélier; D. Bennett; L. Bergé; J. Ph Bernard; M. Bersanelli; M. A. Bigot-Sazy; J. Bonaparte; J. Bonis; G. Bordier; E. Bréelle; E. Bunn; D. Buzi; A. Buzzelli; F. Cavaliere; P. Chanial; R. Charlassier; F. Columbro; G. Coppi; A. Coppolecchia; F. Couchot; R. D'Agostino; G. D'Alessandro; P. De Bernardis; G. De Gasperis; A. Di Donato; L. Dumoulin; A. Etchegoyen; A. Fasciszewski; C. Franceschet; M. M. Gamboa Lerena; B. García; X. Garrido; M. Gaspard; A. Gault; M. Gervasi; M. Giard; Y. Giraud-Héraud; M. Gómez Berisso; M. González; M. Gradziel; L. Grandsire; E. Guerrard; D. Harari; V. Haynes; S. Henrot-Versillé; D. T. Hoang; F. Incardona; E. Jules; J. Kaplan; A. Korotkov; C. Kristukat; L. Lamagna; S. Loucatos; T. Louis; A. Lowitz; V. Lukovic; R. Luterstein; B. Maffei; S. Marnieros; S. Masi; A. May; M. McCulloch; M. C. Medina; L. Mele; S. Melhuish; L. Montier; L. M. Mundo; J. A. Murphy; E. Olivieri; A. Paiella; F. Pajot; A. Passerini; H. Pastoriza; A. Pelosi; C. Perbost; O. Perdereau; F. Pezzotta; F. Piacentini; L. Piccirillo; G. Pisano; G. Polenta; D. Prêle; R. Puddu; D. Rambaud; P. Ringegni; G. E. Romero; M. Salatino; A. Schillaci; C. G. Scóccola; S. Spinelli; M. Stolpovskiy; F. Suarez; A. Tartari; J. P. Thermeau; P. Timbie; S. A. Torchinsky; M. Tristram; V. Truongcanh; C. Tucker; G. Tucker; S. Vanneste; D. Viganò; N. Vittorio; F. Voisin; B. Watson; F. Wicek

doi:10.1117/12.2313256

Simulations and performance of the QUBIC optical beam combiner

C. O'Sullivan, D. Burke, D. Gayer, J. D. Murphy, S. Scully, M. De Leo, M. De Petris, A. Mattei, A. Zullo, A. Mennella, M. Zannoni, N. Bleurvacq, C. Chapron, J. Ch Hamilton, M. Piat, P. Ade, G. Amico, D. Auguste, J. Aumont, S. BanfiG. Barbarán, P. Battaglia, E. Battistelli, A. Baù, B. Bélier, D. Bennett, L. Bergé, J. Ph Bernard, M. Bersanelli, M. A. Bigot-Sazy, J. Bonaparte, J. Bonis, G. Bordier, E. Bréelle, E. Bunn, D. Buzi, A. Buzzelli, F. Cavaliere, P. Chanial, R. Charlassier, F. Columbro, G. Coppi, A. Coppolecchia, F. Couchot, R. D'Agostino, G. D'Alessandro, P. De Bernardis, G. De Gasperis, A. Di Donato, L. Dumoulin, A. Etchegoyen, A. Fasciszewski, C. Franceschet, M. M. Gamboa Lerena, B. García, X. Garrido, M. Gaspard, A. Gault, M. Gervasi, M. Giard, Y. Giraud-Héraud, M. Gómez Berisso, M. González, M. Gradziel, L. Grandsire, E. Guerrard, D. Harari, V. Haynes, S. Henrot-Versillé, D. T. Hoang, F. Incardona, E. Jules, J. Kaplan, A. Korotkov, C. Kristukat, L. Lamagna, S. Loucatos, T. Louis, A. Lowitz, V. Lukovic, R. Luterstein, B. Maffei, S. Marnieros, S. Masi, A. May, M. McCulloch, M. C. Medina, L. Mele, S. Melhuish, L. Montier, L. M. Mundo, J. A. Murphy, E. Olivieri, A. Paiella, F. Pajot, A. Passerini, H. Pastoriza, A. Pelosi, C. Perbost, O. Perdereau, F. Pezzotta, F. Piacentini, L. Piccirillo, G. Pisano, G. Polenta, D. Prêle, R. Puddu, D. Rambaud, P. Ringegni, G. E. Romero, M. Salatino, A. Schillaci, C. G. Scóccola, S. Spinelli, M. Stolpovskiy, F. Suarez, A. Tartari, J. P. Thermeau, P. Timbie, S. A. Torchinsky, M. Tristram, V. Truongcanh, C. Tucker, G. Tucker, S. Vanneste, D. Viganò, N. Vittorio, F. Voisin, B. Watson, F. Wicek

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

5 Scopus citations

Abstract

QUBIC, the Q & U Bolometric Interferometer for Cosmology, is a novel ground-based instrument that aims to measure the extremely faint B-mode polarisation anisotropy of the cosmic microwave background at intermediate angular scales (multipoles of o-= 30-200). Primordial B-modes are a key prediction of Inflation as they can only be produced by gravitational waves in the very early universe. To achieve this goal, QUBIC will use bolometric interferometry, a technique that combines the sensitivity of an imager with the immunity to systematic effects of an interferometer. It will directly observe the sky through an array of back-to-back entry horns whose beams will be superimposed using a cooled quasioptical beam combiner. Images of the resulting interference fringes will be formed on two focal planes, each tiled with transition-edge sensors, cooled down to 320 mK. A dichroic filter placed between the optical combiner and the focal planes will select two frequency bands (centred at 150 GHz and 220 GHz), one frequency per focal plane. Polarization modulation will be achieved using a cold stepped half-wave plate (HWP) and polariser in front of the sky-facing horns. The full QUBIC instrument is described elsewhere^1,2,3,4; in this paper we will concentrate in particular on simulations of the optical combiner (an off-axis Gregorian imager) and the feedhorn array. We model the optical performance of both the QUBIC full module and a scaled-down technological demonstrator which will be used to validate the full instrument design. Optical modelling is carried out using full vector physical optics with a combination of commercial and in-house software. In the high-frequency channel we must be careful to consider the higher-order modes that can be transmitted by the horn array. The instrument window function is used as a measure of performance and we investigate the effect of, for example, alignment and manufacturing tolerances, truncation by optical components and off-axis aberrations. We also report on laboratory tests carried on the QUBIC technological demonstrator in advance of deployment to the observing site in Argentina.

Original language	English (US)
Title of host publication	Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy IX
Editors	Jonas Zmuidzinas, Jian-Rong Gao
Publisher	SPIE
ISBN (Print)	9781510619692
DOIs	https://doi.org/10.1117/12.2313256
State	Published - 2018
Externally published	Yes
Event	Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy IX 2018 - Austin, United States Duration: Jun 12 2018 → Jun 15 2018

Publication series

Name	Proceedings of SPIE - The International Society for Optical Engineering
Volume	10708
ISSN (Print)	0277-786X
ISSN (Electronic)	1996-756X

Other

Other	Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy IX 2018
Country/Territory	United States
City	Austin
Period	6/12/18 → 6/15/18

Bibliographical note

Publisher Copyright:
© 2018 SPIE.

Keywords

B-modes
CMB
QUBIC
bolometric interferometry
physical optics

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Publisher link

10.1117/12.2313256

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O'Sullivan, C., Burke, D., Gayer, D., Murphy, J. D., Scully, S., De Leo, M., De Petris, M., Mattei, A., Zullo, A., Mennella, A., Zannoni, M., Bleurvacq, N., Chapron, C., Hamilton, J. C., Piat, M., Ade, P., Amico, G., Auguste, D., Aumont, J., ... Wicek, F. (2018). Simulations and performance of the QUBIC optical beam combiner. In J. Zmuidzinas, & J.-R. Gao (Eds.), Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy IX Article 107082I (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 10708). SPIE. https://doi.org/10.1117/12.2313256

Simulations and performance of the QUBIC optical beam combiner. / O'Sullivan, C.; Burke, D.; Gayer, D. et al.
Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy IX. ed. / Jonas Zmuidzinas; Jian-Rong Gao. SPIE, 2018. 107082I (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 10708).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

O'Sullivan, C, Burke, D, Gayer, D, Murphy, JD, Scully, S, De Leo, M, De Petris, M, Mattei, A, Zullo, A, Mennella, A, Zannoni, M, Bleurvacq, N, Chapron, C, Hamilton, JC, Piat, M, Ade, P, Amico, G, Auguste, D, Aumont, J, Banfi, S, Barbarán, G, Battaglia, P, Battistelli, E, Baù, A, Bélier, B, Bennett, D, Bergé, L, Bernard, JP, Bersanelli, M, Bigot-Sazy, MA, Bonaparte, J, Bonis, J, Bordier, G, Bréelle, E, Bunn, E, Buzi, D, Buzzelli, A, Cavaliere, F, Chanial, P, Charlassier, R, Columbro, F, Coppi, G, Coppolecchia, A, Couchot, F, D'Agostino, R, D'Alessandro, G, De Bernardis, P, De Gasperis, G, Di Donato, A, Dumoulin, L, Etchegoyen, A, Fasciszewski, A, Franceschet, C, Gamboa Lerena, MM, García, B, Garrido, X, Gaspard, M, Gault, A, Gervasi, M, Giard, M, Giraud-Héraud, Y, Gómez Berisso, M, González, M, Gradziel, M, Grandsire, L, Guerrard, E, Harari, D, Haynes, V, Henrot-Versillé, S, Hoang, DT, Incardona, F, Jules, E, Kaplan, J, Korotkov, A, Kristukat, C, Lamagna, L, Loucatos, S, Louis, T, Lowitz, A, Lukovic, V, Luterstein, R, Maffei, B, Marnieros, S, Masi, S, May, A, McCulloch, M, Medina, MC, Mele, L, Melhuish, S, Montier, L, Mundo, LM, Murphy, JA, Olivieri, E, Paiella, A, Pajot, F, Passerini, A, Pastoriza, H, Pelosi, A, Perbost, C, Perdereau, O, Pezzotta, F, Piacentini, F, Piccirillo, L, Pisano, G, Polenta, G, Prêle, D, Puddu, R, Rambaud, D, Ringegni, P, Romero, GE, Salatino, M, Schillaci, A, Scóccola, CG, Spinelli, S, Stolpovskiy, M, Suarez, F, Tartari, A, Thermeau, JP, Timbie, P, Torchinsky, SA, Tristram, M, Truongcanh, V, Tucker, C, Tucker, G, Vanneste, S, Viganò, D, Vittorio, N, Voisin, F, Watson, B & Wicek, F 2018, Simulations and performance of the QUBIC optical beam combiner. in J Zmuidzinas & J-R Gao (eds), Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy IX., 107082I, Proceedings of SPIE - The International Society for Optical Engineering, vol. 10708, SPIE, Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy IX 2018, Austin, United States, 6/12/18. https://doi.org/10.1117/12.2313256

O'Sullivan C, Burke D, Gayer D, Murphy JD, Scully S, De Leo M et al. Simulations and performance of the QUBIC optical beam combiner. In Zmuidzinas J, Gao JR, editors, Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy IX. SPIE. 2018. 107082I. (Proceedings of SPIE - The International Society for Optical Engineering). doi: 10.1117/12.2313256

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title = "Simulations and performance of the QUBIC optical beam combiner",

abstract = "QUBIC, the Q & U Bolometric Interferometer for Cosmology, is a novel ground-based instrument that aims to measure the extremely faint B-mode polarisation anisotropy of the cosmic microwave background at intermediate angular scales (multipoles of o-= 30-200). Primordial B-modes are a key prediction of Inflation as they can only be produced by gravitational waves in the very early universe. To achieve this goal, QUBIC will use bolometric interferometry, a technique that combines the sensitivity of an imager with the immunity to systematic effects of an interferometer. It will directly observe the sky through an array of back-to-back entry horns whose beams will be superimposed using a cooled quasioptical beam combiner. Images of the resulting interference fringes will be formed on two focal planes, each tiled with transition-edge sensors, cooled down to 320 mK. A dichroic filter placed between the optical combiner and the focal planes will select two frequency bands (centred at 150 GHz and 220 GHz), one frequency per focal plane. Polarization modulation will be achieved using a cold stepped half-wave plate (HWP) and polariser in front of the sky-facing horns. The full QUBIC instrument is described elsewhere1,2,3,4; in this paper we will concentrate in particular on simulations of the optical combiner (an off-axis Gregorian imager) and the feedhorn array. We model the optical performance of both the QUBIC full module and a scaled-down technological demonstrator which will be used to validate the full instrument design. Optical modelling is carried out using full vector physical optics with a combination of commercial and in-house software. In the high-frequency channel we must be careful to consider the higher-order modes that can be transmitted by the horn array. The instrument window function is used as a measure of performance and we investigate the effect of, for example, alignment and manufacturing tolerances, truncation by optical components and off-axis aberrations. We also report on laboratory tests carried on the QUBIC technological demonstrator in advance of deployment to the observing site in Argentina.",

keywords = "B-modes, CMB, QUBIC, bolometric interferometry, physical optics",

author = "C. O'Sullivan and D. Burke and D. Gayer and Murphy, {J. D.} and S. Scully and {De Leo}, M. and {De Petris}, M. and A. Mattei and A. Zullo and A. Mennella and M. Zannoni and N. Bleurvacq and C. Chapron and Hamilton, {J. Ch} and M. Piat and P. Ade and G. Amico and D. Auguste and J. Aumont and S. Banfi and G. Barbar{\'a}n and P. Battaglia and E. Battistelli and A. Ba{\`u} and B. B{\'e}lier and D. Bennett and L. Berg{\'e} and Bernard, {J. Ph} and M. Bersanelli and Bigot-Sazy, {M. A.} and J. Bonaparte and J. Bonis and G. Bordier and E. Br{\'e}elle and E. Bunn and D. Buzi and A. Buzzelli and F. Cavaliere and P. Chanial and R. Charlassier and F. Columbro and G. Coppi and A. Coppolecchia and F. Couchot and R. D'Agostino and G. D'Alessandro and {De Bernardis}, P. and {De Gasperis}, G. and {Di Donato}, A. and L. Dumoulin and A. Etchegoyen and A. Fasciszewski and C. Franceschet and {Gamboa Lerena}, {M. M.} and B. Garc{\'i}a and X. Garrido and M. Gaspard and A. Gault and M. Gervasi and M. Giard and Y. Giraud-H{\'e}raud and {G{\'o}mez Berisso}, M. and M. Gonz{\'a}lez and M. Gradziel and L. Grandsire and E. Guerrard and D. Harari and V. Haynes and S. Henrot-Versill{\'e} and Hoang, {D. T.} and F. Incardona and E. Jules and J. Kaplan and A. Korotkov and C. Kristukat and L. Lamagna and S. Loucatos and T. Louis and A. Lowitz and V. Lukovic and R. Luterstein and B. Maffei and S. Marnieros and S. Masi and A. May and M. McCulloch and Medina, {M. C.} and L. Mele and S. Melhuish and L. Montier and Mundo, {L. M.} and Murphy, {J. A.} and E. Olivieri and A. Paiella and F. Pajot and A. Passerini and H. Pastoriza and A. Pelosi and C. Perbost and O. Perdereau and F. Pezzotta and F. Piacentini and L. Piccirillo and G. Pisano and G. Polenta and D. Pr{\^e}le and R. Puddu and D. Rambaud and P. Ringegni and Romero, {G. E.} and M. Salatino and A. Schillaci and Sc{\'o}ccola, {C. G.} and S. Spinelli and M. Stolpovskiy and F. Suarez and A. Tartari and Thermeau, {J. P.} and P. Timbie and Torchinsky, {S. A.} and M. Tristram and V. Truongcanh and C. Tucker and G. Tucker and S. Vanneste and D. Vigan{\`o} and N. Vittorio and F. Voisin and B. Watson and F. Wicek",

note = "Publisher Copyright: {\textcopyright} 2018 SPIE.; Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy IX 2018 ; Conference date: 12-06-2018 Through 15-06-2018",

year = "2018",

doi = "10.1117/12.2313256",

language = "English (US)",

isbn = "9781510619692",

series = "Proceedings of SPIE - The International Society for Optical Engineering",

publisher = "SPIE",

editor = "Jonas Zmuidzinas and Jian-Rong Gao",

booktitle = "Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy IX",

address = "United States",

}

TY - GEN

T1 - Simulations and performance of the QUBIC optical beam combiner

AU - O'Sullivan, C.

AU - Burke, D.

AU - Gayer, D.

AU - Murphy, J. D.

AU - Scully, S.

AU - De Leo, M.

AU - De Petris, M.

AU - Mattei, A.

AU - Zullo, A.

AU - Mennella, A.

AU - Zannoni, M.

AU - Bleurvacq, N.

AU - Chapron, C.

AU - Hamilton, J. Ch

AU - Piat, M.

AU - Ade, P.

AU - Amico, G.

AU - Auguste, D.

AU - Aumont, J.

AU - Banfi, S.

AU - Barbarán, G.

AU - Battaglia, P.

AU - Battistelli, E.

AU - Baù, A.

AU - Bélier, B.

AU - Bennett, D.

AU - Bergé, L.

AU - Bernard, J. Ph

AU - Bersanelli, M.

AU - Bigot-Sazy, M. A.

AU - Bonaparte, J.

AU - Bonis, J.

AU - Bordier, G.

AU - Bréelle, E.

AU - Bunn, E.

AU - Buzi, D.

AU - Buzzelli, A.

AU - Cavaliere, F.

AU - Chanial, P.

AU - Charlassier, R.

AU - Columbro, F.

AU - Coppi, G.

AU - Coppolecchia, A.

AU - Couchot, F.

AU - D'Agostino, R.

AU - D'Alessandro, G.

AU - De Bernardis, P.

AU - De Gasperis, G.

AU - Di Donato, A.

AU - Dumoulin, L.

AU - Etchegoyen, A.

AU - Fasciszewski, A.

AU - Franceschet, C.

AU - Gamboa Lerena, M. M.

AU - García, B.

AU - Garrido, X.

AU - Gaspard, M.

AU - Gault, A.

AU - Gervasi, M.

AU - Giard, M.

AU - Giraud-Héraud, Y.

AU - Gómez Berisso, M.

AU - González, M.

AU - Gradziel, M.

AU - Grandsire, L.

AU - Guerrard, E.

AU - Harari, D.

AU - Haynes, V.

AU - Henrot-Versillé, S.

AU - Hoang, D. T.

AU - Incardona, F.

AU - Jules, E.

AU - Kaplan, J.

AU - Korotkov, A.

AU - Kristukat, C.

AU - Lamagna, L.

AU - Loucatos, S.

AU - Louis, T.

AU - Lowitz, A.

AU - Lukovic, V.

AU - Luterstein, R.

AU - Maffei, B.

AU - Marnieros, S.

AU - Masi, S.

AU - May, A.

AU - McCulloch, M.

AU - Medina, M. C.

AU - Mele, L.

AU - Melhuish, S.

AU - Montier, L.

AU - Mundo, L. M.

AU - Murphy, J. A.

AU - Olivieri, E.

AU - Paiella, A.

AU - Pajot, F.

AU - Passerini, A.

AU - Pastoriza, H.

AU - Pelosi, A.

AU - Perbost, C.

AU - Perdereau, O.

AU - Pezzotta, F.

AU - Piacentini, F.

AU - Piccirillo, L.

AU - Pisano, G.

AU - Polenta, G.

AU - Prêle, D.

AU - Puddu, R.

AU - Rambaud, D.

AU - Ringegni, P.

AU - Romero, G. E.

AU - Salatino, M.

AU - Schillaci, A.

AU - Scóccola, C. G.

AU - Spinelli, S.

AU - Stolpovskiy, M.

AU - Suarez, F.

AU - Tartari, A.

AU - Thermeau, J. P.

AU - Timbie, P.

AU - Torchinsky, S. A.

AU - Tristram, M.

AU - Truongcanh, V.

AU - Tucker, C.

AU - Tucker, G.

AU - Vanneste, S.

AU - Viganò, D.

AU - Vittorio, N.

AU - Voisin, F.

AU - Watson, B.

AU - Wicek, F.

PY - 2018

Y1 - 2018

N2 - QUBIC, the Q & U Bolometric Interferometer for Cosmology, is a novel ground-based instrument that aims to measure the extremely faint B-mode polarisation anisotropy of the cosmic microwave background at intermediate angular scales (multipoles of o-= 30-200). Primordial B-modes are a key prediction of Inflation as they can only be produced by gravitational waves in the very early universe. To achieve this goal, QUBIC will use bolometric interferometry, a technique that combines the sensitivity of an imager with the immunity to systematic effects of an interferometer. It will directly observe the sky through an array of back-to-back entry horns whose beams will be superimposed using a cooled quasioptical beam combiner. Images of the resulting interference fringes will be formed on two focal planes, each tiled with transition-edge sensors, cooled down to 320 mK. A dichroic filter placed between the optical combiner and the focal planes will select two frequency bands (centred at 150 GHz and 220 GHz), one frequency per focal plane. Polarization modulation will be achieved using a cold stepped half-wave plate (HWP) and polariser in front of the sky-facing horns. The full QUBIC instrument is described elsewhere1,2,3,4; in this paper we will concentrate in particular on simulations of the optical combiner (an off-axis Gregorian imager) and the feedhorn array. We model the optical performance of both the QUBIC full module and a scaled-down technological demonstrator which will be used to validate the full instrument design. Optical modelling is carried out using full vector physical optics with a combination of commercial and in-house software. In the high-frequency channel we must be careful to consider the higher-order modes that can be transmitted by the horn array. The instrument window function is used as a measure of performance and we investigate the effect of, for example, alignment and manufacturing tolerances, truncation by optical components and off-axis aberrations. We also report on laboratory tests carried on the QUBIC technological demonstrator in advance of deployment to the observing site in Argentina.

AB - QUBIC, the Q & U Bolometric Interferometer for Cosmology, is a novel ground-based instrument that aims to measure the extremely faint B-mode polarisation anisotropy of the cosmic microwave background at intermediate angular scales (multipoles of o-= 30-200). Primordial B-modes are a key prediction of Inflation as they can only be produced by gravitational waves in the very early universe. To achieve this goal, QUBIC will use bolometric interferometry, a technique that combines the sensitivity of an imager with the immunity to systematic effects of an interferometer. It will directly observe the sky through an array of back-to-back entry horns whose beams will be superimposed using a cooled quasioptical beam combiner. Images of the resulting interference fringes will be formed on two focal planes, each tiled with transition-edge sensors, cooled down to 320 mK. A dichroic filter placed between the optical combiner and the focal planes will select two frequency bands (centred at 150 GHz and 220 GHz), one frequency per focal plane. Polarization modulation will be achieved using a cold stepped half-wave plate (HWP) and polariser in front of the sky-facing horns. The full QUBIC instrument is described elsewhere1,2,3,4; in this paper we will concentrate in particular on simulations of the optical combiner (an off-axis Gregorian imager) and the feedhorn array. We model the optical performance of both the QUBIC full module and a scaled-down technological demonstrator which will be used to validate the full instrument design. Optical modelling is carried out using full vector physical optics with a combination of commercial and in-house software. In the high-frequency channel we must be careful to consider the higher-order modes that can be transmitted by the horn array. The instrument window function is used as a measure of performance and we investigate the effect of, for example, alignment and manufacturing tolerances, truncation by optical components and off-axis aberrations. We also report on laboratory tests carried on the QUBIC technological demonstrator in advance of deployment to the observing site in Argentina.

KW - B-modes

KW - CMB

KW - QUBIC

KW - bolometric interferometry

KW - physical optics

UR - http://www.scopus.com/inward/record.url?scp=85051925708&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85051925708&partnerID=8YFLogxK

U2 - 10.1117/12.2313256

DO - 10.1117/12.2313256

M3 - Conference contribution

AN - SCOPUS:85051925708

SN - 9781510619692

T3 - Proceedings of SPIE - The International Society for Optical Engineering

BT - Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy IX

A2 - Zmuidzinas, Jonas

A2 - Gao, Jian-Rong

PB - SPIE

T2 - Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy IX 2018

Y2 - 12 June 2018 through 15 June 2018

ER -

Simulations and performance of the QUBIC optical beam combiner

Abstract

Publication series

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Bibliographical note

Keywords

UN SDGs

Publisher link

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