A distributed-absorber cold-electron bolometer single pixel at 95GHz

Mahashabde, Sumedh, 1985 (author): Chalmers tekniska högskola,Chalmers University of Technology

Tarasov, Mikhail, 1954 (author): Chalmers tekniska högskola,Chalmers University of Technology

Salatino, Maria, 1983 (author): Chalmers tekniska högskola,Chalmers University of Technology

Sobolev, A. (author): National Research University of Electronic Technology (MIET),M. V. Lomonosov Moscow State University

Masi, S. (author): Universita degli Studi di Roma la Sapienza,Sapienza University of Rome

Kuzmin, Leonid, 1946 (author): Chalmers tekniska högskola,Chalmers University of Technology

de Bernardis, P. (author): Universita degli Studi di Roma la Sapienza,Sapienza University of Rome

(creator_code:org_t)

AIP Publishing, 2015
2015
English.
In: Applied Physics Letters. - : AIP Publishing. - 0003-6951 .- 1077-3118. ; 107:9

Related links:: http://publications.... (primary) (free); show more...; http://publications....; https://research.cha...; https://doi.org/10.1...; show less...

Abstract Subject headings

We describe a Frequency Selective Surface (FSS) based distributed-absorber Cold-Electron Bolometer (CEB) pixel at 95GHz integrated in a multi-moded horn. The FSS provides a resonant interaction with incident mm and sub-mm radiation and defines the bandwidth of the array while the horn provides the matching of the beam to the telescope optics. CEB detectors with matched impedance are integrated within the periodic elements of the FSS and generate a voltage response proportional to the incident optical power in the bandwidth of the FSS. A prototype pixel was designed, fabricated, and characterized at a temperature of 280 mK. We present optical response to blackbody radiation and fit it to the CEB model. For an absorbed power of 50 pW, we estimate an optical responsivity of 1.2×108V/W and a readout dominated Noise Equivalent Power (NEP) of 1.8×10-15 W Hz - 1 / 2. A measured bandwidth of 9GHz of this detector array confirms the frequency selective nature. This prototype represents a possible solution as a detector for the 95GHz channel of the SWIPE instrument on the LSPE balloon-borne telescope. This kind of FSS based mm-wave architecture can be easily scaled to other frequency ranges and used on any other balloon-borne telescope focal planes.

By the author/editor: Mahashabde, Sume ...; Tarasov, Mikhail ...; Salatino, Maria, ...; Sobolev, A.; Masi, S.; Kuzmin, Leonid, ...; show more...; de Bernardis, P.; show less...

About the subject

Kungliga biblioteket hanterar dina personuppgifter i enlighet med EU:s dataskyddsförordning (2018), GDPR. Läs mer om hur det funkar här.
Så här hanterar KB dina uppgifter vid användning av denna tjänst.