Quasi-Optical LO Coupling Validation for a Planarly Integrated 2 × 2 Pixel Heterodyne Array at 1.95 THz

S. L. van Berkel; A. Maestrini; C. Jung-Kubiak; Sjoerd Bosma; M. Alonso-delPino; D. Hayton; Jacob Kooi; J. V. Siles; Nuria Llombart; I. Mehdi; G. Chattopadhyay

doi:10.1109/IRMMW-THz57677.2023.10299120

Quasi-Optical LO Coupling Validation for a Planarly Integrated 2 × 2 Pixel Heterodyne Array at 1.95 THz

S. L. van Berkel, A. Maestrini, C. Jung-Kubiak, Sjoerd Bosma, M. Alonso-delPino, D. Hayton, Jacob Kooi, J. V. Siles, Nuria Llombart, I. Mehdi, G. Chattopadhyay

Tera-Hertz Sensing

Research output: Chapter in Book/Conference proceedings/Edited volume › Conference contribution › Scientific › peer-review

Abstract

Terahertz heterodyne spectrometer instruments have been traditionally limited to a single pixel or a handful of pixels due to integration and assembly constraints and a limited availability of local oscillator (LO) power. As a solution we propose a novel silicon-micromachined planar and modular packaging strategy, that will allow for a dense integration of a large number of pixels. Moreover, the RF- and LO signals will be quasi-optically coupled via two identical but opposite lens arrays, such that a single LO-source can efficiently pump all HEB-mixers of the 2x2 pixel demonstrator array simultaneously. This work reports on an intermediate step, where we validate the lens array performance and LO power coupling efficiency, by slightly modifying the silicon package into a transmit array configuration. In this way, the LO power coupled into the stack is directly reradiated on the other side, which is then measured using a liquid helium cooled bolometer.

Original language	English
Title of host publication	Proceedings of the 2023 48th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz)
Publisher	IEEE
Number of pages	2
ISBN (Electronic)	979-8-3503-3660-3
ISBN (Print)	979-8-3503-3661-0
DOIs	https://doi.org/10.1109/IRMMW-THz57677.2023.10299120
Publication status	Published - 2023
Event	2023 48th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz) - Montreal, Canada Duration: 17 Sept 2023 → 22 Sept 2023 Conference number: 48th

Conference

Conference	2023 48th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz)
Country/Territory	Canada
City	Montreal
Period	17/09/23 → 22/09/23

Bibliographical note

Green Open Access added to TU Delft Institutional Repository 'You share, we take care!' - Taverne project https://www.openaccess.nl/en/you-share-we-take-care
Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.

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Berkel, S. L. V., Maestrini, A., Jung-Kubiak, C., Bosma, S., Alonso-delPino, M., Hayton, D., Kooi, J., Siles, J. V., Llombart, N., Mehdi, I., & Chattopadhyay, G. (2023). Quasi-Optical LO Coupling Validation for a Planarly Integrated 2 × 2 Pixel Heterodyne Array at 1.95 THz. In Proceedings of the 2023 48th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz) IEEE. https://doi.org/10.1109/IRMMW-THz57677.2023.10299120

@inproceedings{4bfae65fcc2349988950d8cd13ced13e,

title = "Quasi-Optical LO Coupling Validation for a Planarly Integrated 2 × 2 Pixel Heterodyne Array at 1.95 THz",

abstract = "Terahertz heterodyne spectrometer instruments have been traditionally limited to a single pixel or a handful of pixels due to integration and assembly constraints and a limited availability of local oscillator (LO) power. As a solution we propose a novel silicon-micromachined planar and modular packaging strategy, that will allow for a dense integration of a large number of pixels. Moreover, the RF- and LO signals will be quasi-optically coupled via two identical but opposite lens arrays, such that a single LO-source can efficiently pump all HEB-mixers of the 2x2 pixel demonstrator array simultaneously. This work reports on an intermediate step, where we validate the lens array performance and LO power coupling efficiency, by slightly modifying the silicon package into a transmit array configuration. In this way, the LO power coupled into the stack is directly reradiated on the other side, which is then measured using a liquid helium cooled bolometer.",

author = "Berkel, {S. L. van} and A. Maestrini and C. Jung-Kubiak and Sjoerd Bosma and M. Alonso-delPino and D. Hayton and Jacob Kooi and Siles, {J. V.} and Nuria Llombart and I. Mehdi and G. Chattopadhyay",

note = "Green Open Access added to TU Delft Institutional Repository 'You share, we take care!' - Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.; 2023 48th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz) ; Conference date: 17-09-2023 Through 22-09-2023",

year = "2023",

doi = "10.1109/IRMMW-THz57677.2023.10299120",

language = "English",

isbn = "979-8-3503-3661-0",

booktitle = "Proceedings of the 2023 48th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz)",

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Berkel, SLV, Maestrini, A, Jung-Kubiak, C, Bosma, S , Alonso-delPino, M, Hayton, D, Kooi, J, Siles, JV, Llombart, N, Mehdi, I & Chattopadhyay, G 2023, Quasi-Optical LO Coupling Validation for a Planarly Integrated 2 × 2 Pixel Heterodyne Array at 1.95 THz. in Proceedings of the 2023 48th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz). IEEE, 2023 48th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz), Montreal, Canada, 17/09/23. https://doi.org/10.1109/IRMMW-THz57677.2023.10299120

Quasi-Optical LO Coupling Validation for a Planarly Integrated 2 × 2 Pixel Heterodyne Array at 1.95 THz. / Berkel, S. L. van; Maestrini, A.; Jung-Kubiak, C. et al.
Proceedings of the 2023 48th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz). IEEE, 2023.

Research output: Chapter in Book/Conference proceedings/Edited volume › Conference contribution › Scientific › peer-review

TY - GEN

T1 - Quasi-Optical LO Coupling Validation for a Planarly Integrated 2 × 2 Pixel Heterodyne Array at 1.95 THz

AU - Berkel, S. L. van

AU - Maestrini, A.

AU - Jung-Kubiak, C.

AU - Bosma, Sjoerd

AU - Alonso-delPino, M.

AU - Hayton, D.

AU - Kooi, Jacob

AU - Siles, J. V.

AU - Llombart, Nuria

AU - Mehdi, I.

AU - Chattopadhyay, G.

N1 - Conference code: 48th

PY - 2023

Y1 - 2023

N2 - Terahertz heterodyne spectrometer instruments have been traditionally limited to a single pixel or a handful of pixels due to integration and assembly constraints and a limited availability of local oscillator (LO) power. As a solution we propose a novel silicon-micromachined planar and modular packaging strategy, that will allow for a dense integration of a large number of pixels. Moreover, the RF- and LO signals will be quasi-optically coupled via two identical but opposite lens arrays, such that a single LO-source can efficiently pump all HEB-mixers of the 2x2 pixel demonstrator array simultaneously. This work reports on an intermediate step, where we validate the lens array performance and LO power coupling efficiency, by slightly modifying the silicon package into a transmit array configuration. In this way, the LO power coupled into the stack is directly reradiated on the other side, which is then measured using a liquid helium cooled bolometer.

AB - Terahertz heterodyne spectrometer instruments have been traditionally limited to a single pixel or a handful of pixels due to integration and assembly constraints and a limited availability of local oscillator (LO) power. As a solution we propose a novel silicon-micromachined planar and modular packaging strategy, that will allow for a dense integration of a large number of pixels. Moreover, the RF- and LO signals will be quasi-optically coupled via two identical but opposite lens arrays, such that a single LO-source can efficiently pump all HEB-mixers of the 2x2 pixel demonstrator array simultaneously. This work reports on an intermediate step, where we validate the lens array performance and LO power coupling efficiency, by slightly modifying the silicon package into a transmit array configuration. In this way, the LO power coupled into the stack is directly reradiated on the other side, which is then measured using a liquid helium cooled bolometer.

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U2 - 10.1109/IRMMW-THz57677.2023.10299120

DO - 10.1109/IRMMW-THz57677.2023.10299120

M3 - Conference contribution

SN - 979-8-3503-3661-0

BT - Proceedings of the 2023 48th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz)

PB - IEEE

T2 - 2023 48th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz)

Y2 - 17 September 2023 through 22 September 2023

ER -

Quasi-Optical LO Coupling Validation for a Planarly Integrated 2 × 2 Pixel Heterodyne Array at 1.95 THz

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