Dual-band submillimeter-wave kinetic inductance bolometers and an imaging system for contraband object detection

2018 ◽  
Author(s):  
Juha Hassel ◽  
Shahab Oddin Dabironezare ◽  
Erio Gandini ◽  
Leif Grönberg ◽  
Hannu Sipola ◽  
...  
Keyword(s):  
Object Detection ◽  
Imaging System ◽  
Submillimeter Wave ◽  
Dual Band ◽  
Kinetic Inductance

scholarly journals A Dual-Band Focal Plane Array of Kinetic Inductance Bolometers Based on Frequency-Selective Absorbers

2018 ◽  
Vol 8 (6) ◽  
pp. 746-756 ◽  
Author(s):  
Shahab Oddin Dabironezare ◽  
Juha Hassel ◽  
Erio Gandini ◽  
Leif Gronberg ◽  
Hannu Sipola ◽  
...  
Keyword(s):  
Focal Plane ◽  
Focal Plane Array ◽  
Dual Band ◽  
Kinetic Inductance ◽  
Frequency Selective

scholarly journals The NIKA2 large-field-of-view millimetre continuum camera for the 30 m IRAM telescope

2018 ◽  
Vol 609 ◽  
pp. A115 ◽  
Author(s):  
R. Adam ◽  
A. Adane ◽  
P. A. R. Ade ◽  
P. André ◽  
A. Andrianasolo ◽  
...  
Keyword(s):  
Focal Plane ◽  
High Redshift ◽  
General Purpose ◽  
Focal Plane Arrays ◽  
Field Of View ◽  
Dual Band ◽  
Large Field ◽  
Kinetic Inductance Detectors ◽  
Kinetic Inductance ◽  
Millimetre Wave

Context. Millimetre-wave continuum astronomy is today an indispensable tool for both general astrophysics studies (e.g. star formation, nearby galaxies) and cosmology (e.g. cosmic microwave background and high-redshift galaxies). General purpose, large-field-of-view instruments are needed to map the sky at intermediate angular scales not accessible by the high-resolution interferometers (e.g. ALMA in Chile, NOEMA in the French Alps) and by the coarse angular resolution space-borne or ground-based surveys (e.g. Planck, ACT, SPT). These instruments have to be installed at the focal plane of the largest single-dish telescopes, which are placed at high altitude on selected dry observing sites. In this context, we have constructed and deployed a three-thousand-pixel dual-band (150 GHz and 260 GHz, respectively 2 mm and 1.15 mm wavelengths) camera to image an instantaneous circular field-of-view of 6.5 arcmin in diameter, and configurable to map the linear polarisation at 260 GHz. Aims. First, we are providing a detailed description of this instrument, named NIKA2 (New IRAM KID Arrays 2), in particular focussing on the cryogenics, optics, focal plane arrays based on Kinetic Inductance Detectors, and the readout electronics. The focal planes and part of the optics are cooled down to the nominal 150 mK operating temperature by means of an adhoc dilution refrigerator. Secondly, we are presenting the performance measured on the sky during the commissioning runs that took place between October 2015 and April 2017 at the 30-m IRAM telescope at Pico Veleta, near Granada (Spain). Methods. We have targeted a number of astronomical sources. Starting from beam-maps on primary and secondary calibrators we have then gone to extended sources and faint objects. Both internal (electronic) and on-the-sky calibrations are applied. The general methods are described in the present paper. Results. NIKA2 has been successfully deployed and commissioned, performing in-line with expectations. In particular, NIKA2 exhibits full width at half maximum angular resolutions of around 11 and 17.5 arcsec at respectively 260 and 150 GHz. The noise equivalent flux densities are, at these two respective frequencies, 33±2 and 8±1 mJy s1/2. A first successful science verification run was achieved in April 2017. The instrument is currently offered to the astronomy community and will remain available for at least the following ten years.

Compact dual band/dual FOV infrared imaging system with freeform prism

2021 ◽  
Vol 46 (4) ◽  
pp. 829
Author(s):  
Jun Yu ◽  
Zhengxiang Shen ◽  
Zhanshan Wang
Keyword(s):  
Infrared Imaging ◽  
Imaging System ◽  
Dual Band ◽  
Infrared Imaging System

Optimization of kinetic inductance detectors for millimeter and submillimeter wave detection

2014 ◽  
Author(s):  
G. Coiffard ◽  
K. F. Schuster ◽  
A. Monfardini ◽  
A. Adane ◽  
B. Barbier ◽  
...  
Keyword(s):  
Submillimeter Wave ◽  
Kinetic Inductance Detectors ◽  
Kinetic Inductance ◽  
Wave Detection

Active millimeter-wave imaging system for material analysis and object detection

2011 ◽  
Author(s):  
Christian Zech ◽  
Axel Hülsmann ◽  
Ingmar Kallfass ◽  
Axel Tessmann ◽  
Martin Zink ◽  
...  
Keyword(s):  
Object Detection ◽  
Millimeter Wave ◽  
Imaging System ◽  
Millimeter Wave Imaging ◽  
Material Analysis ◽  
Wave Imaging

Dynamically Programmable, Dual-Band Computational Imaging System

2012 ◽  
Author(s):  
Brant M. Kaylor ◽  
Amit Ashok ◽  
Eric M. Seger ◽  
Charlie J. Keith ◽  
Randy R. Reibel
Keyword(s):  
Imaging System ◽  
Computational Imaging ◽  
Dual Band

scholarly journals Dual-band optical imaging system-integrated patch antenna based on anisotropic fractal for earth-observation CubeSats

2021 ◽  
Author(s):  
Nursultan Meirambekuly ◽  
Amirkhan A. Temirbayev ◽  
Zeynulla Zh. Zhanabaev ◽  
Beibit A. Karibayev ◽  
Timur A. Namazbayev ◽  
...  
Keyword(s):  
Optical Imaging ◽  
Patch Antenna ◽  
Imaging System ◽  
Earth Observation ◽  
Dual Band ◽  
Optical Imaging System
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