Optical performance of frequency-selective bolometers

Perera, Thushara; Downes, T. P.; Meyer, S. S.; Crawford, T. M.; Cheng, E. S.; Chen, T. C.; Cottingham, D. A.; Sharp, Elmer H.; Silverberg, R. F.; Finkbeiner, F. M.; Fixsen, D. J.; Logan, Daniel W.; Wilson, Grant

doi:10.1364/ao.45.007643

Cited by 10 publications

(5 citation statements)

References 18 publications

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“…The bandpass filter is usually a mesh design with narrow bandwidth and is a candidate for integrating bolometric detectors. A number of attempts have been made to use FSS-based filters fabricated on membranes with the working principle that they couple to incident power in a given bandwidth heating the wideband sensitive membrane [3], [4] and the increase in the membrane temperature is detected by a Transition Edge Sensor. Even multicolor radiometers have been fabricated and tested based on this idea [4], [5].…”

Section: Introductionmentioning

confidence: 99%

A Frequency Selective Surface Based Focal Plane Receiver for the OLIMPO Balloon-Borne Telescope

Mahashabde

Соболев

Bengtsson

et al. 2015

IEEE Trans. THz Sci. Technol.

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We describe here a focal plane array of Cold-Electron Bolometer (CEB) detectors integrated in a frequency selective surface (FSS) for the 350 GHz detection band of the OLIMPO balloon-borne telescope. In our architecture, the two-terminal CEB has been integrated in the periodic unit cell of the FSS structure and is impedance matched to the embedding impedance seen by it and provides a resonant interaction with the incident submillimeter radiation. The detector array has been designed to operate in background noise limited condition for incident powers of 20 pW to 80 pW, making it possible to use the same pixel in both photometric and spectrometric configurations. We present high-frequency and dc simulations of our system, together with fabrication details. The frequency response of the FSS array, optical response measurements with hot/cold load in front of optical window, and with variable-temperature blackbody source inside cryostat are presented. A comparison of the optical response to the CEB model and estimations of noise equivalent power (NEP) is also presented. Index Terms-Cold-electron bolometer (CEB), frequency selective surface (FSS), OLIMPO.A. Sobolev is with the Kotel'nikov Institute of Radio Engineering and Electronics, Moscow, Russia, and also with the Moscow Institute of Physics and Technology (State University), Moscow, Russia. M. A. Tarasov is with the Chalmers University of Technology, Göteborg, Sweden, and also with the Kotel'nikov Institute of Radio Engineering and Electronics, Moscow, Russia.M. Salatino, S. Masi, and P. de Bernardis are with

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Section: Introductionmentioning

confidence: 99%

A Frequency Selective Surface Based Focal Plane Receiver for the OLIMPO Balloon-Borne Telescope

Mahashabde

Соболев

Bengtsson

et al. 2015

IEEE Trans. THz Sci. Technol.

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“…Other work has been done on the application of frequency-selective materials to bolometric devices. These bolometric designs, however, require cryogenic temperatures to operate and only achieve absorbances of about 50% [25]. At optical wavelengths, metal colloides are known to have large absorptive properties, [26] due to the geometric specific surface modes [27].…”

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confidence: 99%

Perfect Metamaterial Absorber

et al. 2008

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We present the design for an absorbing metamaterial (MM) with near unity absorbance A(omega). Our structure consists of two MM resonators that couple separately to electric and magnetic fields so as to absorb all incident radiation within a single unit cell layer. We fabricate, characterize, and analyze a MM absorber with a slightly lower predicted A(omega) of 96%. Unlike conventional absorbers, our MM consists solely of metallic elements. The substrate can therefore be optimized for other parameters of interest. We experimentally demonstrate a peak A(omega) greater than 88% at 11.5 GHz.

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“…Under good observing conditions the typical detector load is of order 9 pW [11,12,13] equivalent to an effective sky temperature of order 20K. As shown in Fig.…”

Section: Noise Equivalent Power Measurementsmentioning

confidence: 99%

Design and characterization of the MUSCAT detectors

Gómez-Rivera

Ade

Barry

et al. 2020

Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy X

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MUSCAT is a second-generation continuum camera for the Large Millimeter Telescope (LMT) "Alfonso Serrano", to observe at the 1.1 mm atmospheric window. The camera has 1500 background-limited, horn-coupled lumpedelement kinetic inductance detectors (LEKIDs) split across six arrays operating at 130-mK. The detector design for MUSCAT is based on a large-volume, double-meander geometry used as the inductive and two-polarization absorbing section of the LEKID resonator. In this paper we present the optical coupling of the meander to a choked waveguide output, the microwave design of the LEKID architecture, the device fabrication process and results demonstrating the detector sensitivity under a range of optical loads. Also presented is the performance of an aluminum absorbing layer used to minimize the optical cross-talk between detectors.

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Optical performance of frequency-selective bolometers

Cited by 10 publications

References 18 publications

A Frequency Selective Surface Based Focal Plane Receiver for the OLIMPO Balloon-Borne Telescope

A Frequency Selective Surface Based Focal Plane Receiver for the OLIMPO Balloon-Borne Telescope

Perfect Metamaterial Absorber

Design and characterization of the MUSCAT detectors

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