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A new kind of bolometric architecture has been successfully developed for the PACS photometer onboard the Herschel submillimeter observatory. These new generation CCD-like arrays are buttable and enable the conception of large fully sampled…

We describe the design and calibration of an external cryogenic blackbody calibrator used for the first two flights of the Absolute Radiometer for Cosmology, Astrophysics, and Diffuse Emission (ARCADE) instrument. The calibrator consists of…

天体物理学 · 物理学 2009-11-10 A. Kogut , E. Wollack , D. J. Fixsen , M. Limon , P. Mirel , S. Levin , M. Seiffert , P. M. Lubin

IO:I is a new instrument that has recently been commissioned for the Liverpool Telescope, extending current imaging capabilities beyond the optical and into the near infrared. Cost has been minimised by use of a previously decommissioned…

天体物理仪器与方法 · 物理学 2015-12-22 Robert Barnsley , Helen Jermak , Iain Steele , Robert Smith , Stuart Bates , Chris Mottram

Optical coatings are widespread in everyday life, from camera lenses to glasses, to complex optics experiments. A simple, reliable device that can quickly and inexpensively analyze optical coatings is a valuable laboratory tool. Such a…

仪器与探测器 · 物理学 2016-06-10 Kayla Hardie , Sascha Agne , Katanya B. Kuntz , Thomas Jennewein

We describe an experimental platform that generates infrared images of micrometer-sized samples in the high pressure region of a diamond anvil cell. Using a 2.3 micron laser as a source of radiation, the system will be particularly useful…

超导电性 · 物理学 2021-11-24 Tarun Patel , A. Drozdov , V. S. Minkov , M. I. Eremets , E. J. Nicol , J. P. Carbotte , T. Timusk , A. W. Tsen

Scalable atom-based quantum platforms for simulation, computing, and metrology require fast high-fidelity, low-loss imaging of individual atoms. Standard fluorescence detection methods rely on continuous cooling, limiting the detection…

Nonlinear optical generation from a crystalline material can reveal the symmetries of both its lattice structure and underlying ordered electronic phases and can therefore be exploited as a complementary technique to diffraction based…

强关联电子 · 物理学 2014-11-04 D. H. Torchinsky , H. Chu , T. Qi , G. Cao , D. Hsieh

The radio sky at lower frequencies, particularly below 20 MHz, is expected to be a combination of increasingly bright non-thermal emission and significant absorption from intervening thermal plasma. The sky maps at these frequencies cannot…

天体物理仪器与方法 · 物理学 2021-09-01 Akhil Jaini , Avinash A. Deshpande , Sainath Bitragunta

The Low Frequency Array (LOFAR) is an ideal instrument to conduct deep extragalactic surveys. It has a large field of view and is sensitive to large scale and compact emission. It is, however, very challenging to synthesize thermal noise…

The MUSCAT instrument is a large-format camera planned for installation on the Large Millimeter Telescope (LMT) in 2018. MUSCAT requires continuous cooling of several large-volume stages to sub-Kelvin temperatures, with the focal plane…

天体物理仪器与方法 · 物理学 2018-07-24 T. L. R. Brien , E. Castillo-Dominguez , S. Chase , S. M. Doyle

We show that for high-magnification (Amax > 100) microlensing events, accurate microlens parallaxes can be obtained from three or fewer photometric measurements from a small telescope on a satellite in solar orbit at ~1 AU from Earth. This…

地球与行星天体物理 · 物理学 2015-06-05 Andrew Gould , Jennifer C. Yee

We have developed a sensor system based on an optical photon-counting imager with high timing resolution, aiming for highly time-variable astronomical phenomena. The detector is a monolithic Geiger-mode avalanche photodiode array customized…

天体物理仪器与方法 · 物理学 2020-12-02 Takeshi Nakamori , Yuga Ouchi , Risa Ogihara , Toshio Terasawa , Yuhei Kato , Shinpei Shibata

We report on the observation and characterisation of an inelastic loss feature in collisions between ultracold Rb-85 |F=2, m_F=-2> atoms at a magnetic field of 220 G. Our apparatus creates ultracold Rb-85 clouds by sympathetic cooling with…

原子物理 · 物理学 2010-02-23 P. A. Altin , N. P. Robins , R. Poldy , J. E. Debs , D. Döring , C. Figl , J. D. Close

The Argus Optical Array will be the first all-sky, arcsecond-resolution, 5-m class telescope. The 55 GPix Array, currently being prototyped, will consist of 900 telescopes with 61 MPix very-low-noise CMOS detectors enabling sub-second…

天体物理仪器与方法 · 物理学 2022-08-01 Nicholas Law , Alan Vasquez Soto , Hank Corbett , Nathan Galliher , Ramses Gonzalez , Lawrence Machia , Glenn Walters

We report the optical imaging of a single atom with nanometer resolution using an adaptive optical alignment technique that is applicable to general optical microscopy. By decomposing the image of a single laser-cooled atom, we identify and…

原子物理 · 物理学 2016-09-21 J. D. Wong-Campos , K. G. Johnson , B. Neyenhuis , J. Mizrahi , C. Monroe

We have observed the cosmic microwave background temperature fluctuations in eight fields covering three separated areas of sky with the Very Small Array at 34 GHz. A total area of 101 square degrees has been imaged, with sensitivity on…

We describe the optical characterisation of two silicon cold-electron bolometers each consisting of a small ($32 \times 14~\mathrm{\mu m}$) island of degenerately doped silicon with superconducting aluminium contacts. Radiation is coupled…

We consider mid-infrared (5 to 25 micrometers), optically cooled detectors based on a microcantilever sensor of the radiation pressure. A significant enhancement of sensitivity is achieved due the combination of low effective temperature…

介观与纳米尺度物理 · 物理学 2009-12-22 Gennady P. Berman , Boris M. Chernobrod , Alan R. Bishop , Umar Mohideen

This paper presents an all-fiber telecom-range optical gyroscope employing a spontaneous parametric down conversion crystal to produce ultra-low intensity thermal light by tracing-out one of the heralded photons. The prototype exhibits a…

Millimetron is a space observatory for millimeter and sub-millimeter observations planned for launch around 2030. The 10-meter diameter space unfolded telescope will be cooled down to 10~K and operated in the vicinity of Lagrange point L2.…

天体物理仪器与方法 · 物理学 2024-10-29 T. A. Syachina , A. G. Rudnitskiy , P. V. Mzhelskiy , M. A. Shchurov , P. R. Zapevalin