Integrated Focal Plane Arrays for Millimeter- wave Astronomy
نویسندگان
چکیده
We are developing focal plane arrays of bolometric detectors for sub-millimeter and millimeter-wave astrophysics. We propose a flexible array architecture using arrays of slot antennae coupled via low-loss superconducting Nb transmission line to microstrip filters and antenna-coupled bolometers. By combining imaging and filtering functions with transmission line, we are able to realize unique structures such as a multi-band polarimeter and a planar, dispersive spectrometer. Micro-strip bolometers have significantly smaller active volume than standard detectors with extended absorbers, and can realize higher sensitivity and speed of response. The integrated array has natural immunity to stray radiation or spectral leaks, and minimizes the suspended mass operating at 0.1 0.3 K. We also discuss future space-borne spectroscopy and polarimetry applications.
منابع مشابه
Coherent Detector Arrays for Millimeter and Submillimeter Astronomy
Progress in many areas of astronomy requires large-area surveys and observations of extended objects. This includes the cosmic microwave background, nearby galaxies, the Milky Way, and regions of star-forming regions within our galaxy. The ability to carry out such studies is critically dependent on the development of affordable high-sensitivity focal plane arrays, for both spectral line and co...
متن کاملDual - Band Millimeter - Wave / Infrared Focal - Plane Arrays
In this paper, a novel arrangement for dual-band millimeter-wave and infrared focal plane array based on slot-antennacoupled metal-oxide-metal diodes is demonstrated. The receiving properties for millimeter-wave and infrared antenna-coupled detector pixels are presented. © 2005 Wiley Periodicals, Inc. Microwave Opt Technol Lett 46: 78–80, 2005; Published online in Wiley InterScience (www.inters...
متن کاملThe Combined Array for Research in Millimeter-Wave Astronomy
This tutorial presents an overview of the Combined Array for Research in MillimeterWave Astronomy (CARMA) and its use of Linux in its embedded systems. CARMA was formed by the merger of two university-based millimeter arrays; the Owens Valley Radio Observatory (OVRO) millimeter array, and the Berkeley-Illinois-Maryland Association (BIMA) millimeter array. The new instrument provides unparallele...
متن کاملTHz Imaging Using Uncooled Wideband Direct Detection Focal Plane Arrays
In millimeter and submillimeter-wave radiometric imaging systems, a persistent goal is the increase in the speed of acquisition of the image while maintaining a high sensitivity. Typically, the highest sensitivity is achieved by cryogenically cooling the detectors, specifically in astronomical applications. However, for the purpose of low-cost imaging applications, it is desirable to operate at...
متن کاملHigh-Performance Focal Plane Arrays Based on the HAWAII-2RG/4RG and the SIDECAR ASIC
The HAWAII-2RG based focal plane arrays represent one the most advanced imaging sensor technologies for nearinfrared and visible astronomy. Since its introduction a few years ago, the HAWAII-2RG has been selected for a large number of space and ground-based instruments, including the James Webb Space Telescope. In addition, the SIDECAR ASIC, a fully integrated FPA controller system-on-a-chip, h...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
دوره شماره
صفحات -
تاریخ انتشار 2007