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Design, realization, and characteristics of a transition edge bolometer for sub-millimeter wave astronomy
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10.1063/1.4764581
/content/aip/journal/rsi/83/11/10.1063/1.4764581
http://aip.metastore.ingenta.com/content/aip/journal/rsi/83/11/10.1063/1.4764581

Figures

Image of FIG. 1.
FIG. 1.

Schematic view of a LABOCA pixel: The thermal conductance is determined by 8 SiN beams. The crossed dipole antennas are visible in the central part. Thermistor (left bottom) and test heater (right top) are connected by niobium wiring passing over two beams.

Image of FIG. 2.
FIG. 2.

Dependence of the critical temperature T c on the thickness of a gold-palladium alloy film on top of 60 nm molybdenum.

Image of FIG. 3.
FIG. 3.

Schematic of the measurement setup: (1) cold plate, (2) detector array, (3) detector mount, (4) chamber backside with reflector, (5) chamber frontside with horn antennas, (6) thermal connectors, (7) electrical connection to next stage, (8) band pass filter at 1.5 K–3 K, (9) low pass filter at 50 K–77 K, (10) cryostat input window.

Image of FIG. 4.
FIG. 4.

Load curves of the testbed design: I-V characteristic under load at 300 K and 77 K blackbodies, and without radiation.

Image of FIG. 5.
FIG. 5.

Power load curves of the testbed design: P-V characteristics under load of 300 K and 77 K blackbodies, and without radiation.

Image of FIG. 6.
FIG. 6.

Model of the NEP spectrum without radiation load and comparison with measured spectrum.

Image of FIG. 7.
FIG. 7.

Model of the NEP spectrum with blackbody load at 77 K, and comparison with measured spectrum.

Image of FIG. 8.
FIG. 8.

Model of the NEP spectrum with blackbody load at 300 K, and comparison with measured spectrum.

Image of FIG. 9.
FIG. 9.

Effect of decimation on the noise for the case of 300 K load.

Image of FIG. 10.
FIG. 10.

Effect of decimation on the noise for the case of 77 K load.

Image of FIG. 11.
FIG. 11.

Effect of decimation on the noise for the case of 150 K load.

Tables

Generic image for table
Table I.

Dependence of photon NEP on background power, calculated following Eqs. (4)–(6).

Generic image for table
Table II.

Heat capacitances of bolometer components.

Generic image for table
Table III.

Dependence of Johnson NEP on the optical load.

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/content/aip/journal/rsi/83/11/10.1063/1.4764581
2012-11-27
2014-04-25
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Design, realization, and characteristics of a transition edge bolometer for sub-millimeter wave astronomy
http://aip.metastore.ingenta.com/content/aip/journal/rsi/83/11/10.1063/1.4764581
10.1063/1.4764581
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