A5011287039- Astronomy and Astrophysical Research
- Adaptive optics and wavefront sensing
- Stellar, planetary, and galactic studies
- Calibration and Measurement Techniques
- Superconducting and THz Device Technology
- Astrophysics and Star Formation Studies
- Astro and Planetary Science
- CCD and CMOS Imaging Sensors
- Spectroscopy and Laser Applications
- Astronomical Observations and Instrumentation
- Silicon and Solar Cell Technologies
- Mass Spectrometry Techniques and Applications
- Thin-Film Transistor Technologies
- Spacecraft and Cryogenic Technologies
- Analytical Chemistry and Sensors
- Advanced Semiconductor Detectors and Materials
- Silicon Carbide Semiconductor Technologies
- Analytical Chemistry and Chromatography
- GaN-based semiconductor devices and materials
- Spacecraft Design and Technology
- Isotope Analysis in Ecology
- Semiconductor materials and interfaces
- Semiconductor Quantum Structures and Devices
Cornell University
1995-2018
Thermo Fisher Scientific (United States)
2010
Ithaca College
2001
The Infrared Spectrograph (IRS) is one of three science instruments on the Spitzer Space Telescope. IRS comprises four separate spectrograph modules covering wavelength range from 5.3 to 38micron with spectral resolutions, R \~90 and 600, it was optimized take full advantage very low background in space environment. performing at or better than pre-launch predictions. An autonomous target acquisition capability enables locate mid-infrared centroid a source, providing information so that...
We describe Cornell's near‐infrared camera system PHARO (Palomar High Angular Resolution Observer) built for use with the JPL Palomar Adaptive Optics System on 5 m Hale telescope. uses a 1024 × HgCdTe HAWAII detector observations between 1 and 2.5 μm wavelength. An all‐reflecting optical provides diffraction‐limited images at two scales, 25 40 mas pixel−1, plus pupil imaging mode. also has coronagraphic capability long‐slit grism spectroscopy mode resolving power ≈1500. The instrument been...
The availability of both large aperture telescopes and format near-infrared (NIR) detectors are making wide-field NIR imaging a reality. We describe the Wide-field Infrared Camera (WIRC), newly commissioned instrument that provides Palomar 200-inch telescope with such an capability. WIRC features field-of-view (FOV) 4.33 arcminutes on side its currently installed 1024-square Rockwell Hawaii-I detector. A 2048-square Hawaii-II detector will be later this year, in collaboration Caltech, to...
The Infrared Spectrograph (IRS) is one of three science instruments on the Spitzer Space Telescope.The IRS comprises four separate spectrograph modules covering wavelength range from 5.3 to 38 µm with spectral resolutions, R~90 and 650, it was optimized take full advantage very low background in space environment.The performing at or better than pre-launch predictions.An autonomous target acquisition capability enables locate mid-infrared centroid a source, providing information so that...
We describe the Faint Object infraRed CAmera for SOFIA Telescope (FORCAST) which is presently operating as a facility instrument on Stratospheric Observatory For Infrared Astronomy (SOFIA). FORCAST provides imaging and moderate resolution spectroscopy capability over 5–40[Formula: see text][Formula: text]m wavelength range. In mode, has 3.4[Formula: text] field-of-view with 0.768[Formula: pixels. Using grisms, long-slit low-resolution ([Formula: text]–300) short-slit, cross-dispersed...
We observed Jupiter on 17–19 July 1994 using NASA's Kuiper Airborne Observatory (KAO) deployed out of Melbourne, Australia. The KAO Echelle Grating Spectrograph (KEGS) uses an array detector with 128 spectral elements and 20 spatial elements. resolution was 0.19 cm−1, equivalent to a resolving power 6800. detected three H2O emission lines near 7.7 μm as well numerous features CH4. At the peak fallback phase for ejecta from G K fragments, we infer temperatures between 1000 1200 at 3-μbar...
Cryogenic telescopes in space offer dramatic reduction thermal IR background flux. Outstanding performance the areas of detector dark current, read noise, and radiation hardness are required to take full advantage sensitivity improvements possible with such facilities, especially very low flux (2 100 photons/pixel/sec) applications as Infrared Spectrograph on SIRTF. We present our testing methods results Si:As Si:Sb block impurity band (BIB) detectors produced by Rockwell International for...
We are constructing a facility-class, mid/far-infrared camera for the Stratospheric Observatory Infrared Astronomy (SOFIA). The Faint Object infraRed CAmera Sofia Telescope (FORCAST) is two-channel with selectable filters continuum imaging in 5 - 8, 17 25 micron, and/or 40 micron regions. design supports simultaneous two-channels. Using latest 256 X Si:As and Si:Sb blocked-impurity-band detector array technology to provide high-sensitivity wide- field imaging. FORCAST will sample images at...
We describe Corneirs NIR camera system for the Hale 200" telescope adaptive optics at Palomar Observatory. The instrument is under construction this time, and we expect first light in December 1997. Here summarize camera's design as well its expected performance.
We report on new development and testing of FORCAST, the Faint Object infraRed Camera for SOFIA Telescope. FORCAST will offer dual channel imaging in discrete filters at 5 - 25 microns 30 40 microns, with diffraction-limited wavelengths > 15 microns. have a plate scale 0.75 arcsec per pixel, giving it 3.2 arcmin x FOV SOFIA. In addition, set grisms enable to perform long slit cross-dispersed spectroscopic observations low moderate resolution (R ~ 140 1200) bandpasses 4.9 8.1 8.0 13.3 17.1...
This paper presents results on performance testing of mid-infrared detector arrays for the Faint Object Infrared Camera SOFIA Telescope (FORCAST). FORCAST is a two-channel camera that utilizes Si:As blocked impurity band (BIB) 256 x array imaging through discrete filters at 5 - 25 microns, and Si:Sb BIB 40 over 3.2' field view, under high thermal background conditions. DRS Technologies has designed fabricated several engineering grade which we test as candidate FORCAST. We present their...
We report laboratory tests amd development progress for the Faint Object Infrared Camera SOFIA Telescope (FORCAST). FORCAST is a two-channel camera with selectable filters continuum and line imaging in 5 - 40 micron wavelength region. Simultaneous will be possible two channels: 25 microns using Si:As 256x256 blocked impurity band (BIB) detector array, 25-40 Si:Sb BIB. sample 0.75 arcseconds per pixel allowing 3.2'x3.2' instantaneous field-of view both channels simultaneously. Imaging...
SCORE is a cross-dispersed echelle spectrograph, built as prototype for the Short-High module of SIRTF's IRS instrument. It operates over 7.5-15 micrometers N-band atmospheric window, and has ben used on Palomar's Hale telescope several times since November, 1996. Since initial run, number improvements have undertaken or are in process being which enhance SCORE's performance simplify its operation. One such addition, now completed, second detector array serves slit-viewer with 12 inch...
We report final design details and development progress for the Faint Object Infrared Camera SOFIA Telescope (FORCAST). FORCAST is a two-channel camera with selectable filters continuum line imaging in 5-40 micron wavelength region. Simultaneous will be possible two-channels--5-25 microns using Si:As 256×256 blocked impurity band (BIB) detector array, 25-40 Si:Sb BIB. sample 0.75 arcseconds per pixel allowing 3.2'×3.2' instantaneous field-of-view both channels simultaneously. Imaging...
We have developed a high speed, flexible, data acquisition system and targeted it to astronomical imaging. The is based on Field Programmable Gate Arrays (FPGAs) provides gigabit/sec fiber optic link between the electronics located instrument host computer. FPGAs are reconfigurable over for maximum flexibility. has initially been at DRS Technologies' 256x256 Si:As Si:Sb detectors used in FORCAST<sup>1</sup>, mid-IR camera/spectrograph built by Cornell University SOFIA. initial configuration...
We report the design, operation, and performance of a next‐generation high‐speed data acquisition system for multichannel infrared optical photometry based on modern technologies field programmable gate arrays, Peripheral Component Interconnect bus, Global Positioning System. This allows either direct recording photon arrival times or binned counting with time resolution up to 1 μs precision in Universal Time, as well real‐time monitoring analysis. The also simultaneous observations very...
The attributes of the scientific-grade 4k linear CID51 sensor are presented. is fabricated using 0.18 μm technology. design rules permit proximity-coupling two photogates within pixel required for non-destructive readout charge. 14 by 50 pixels arranged on evenly staggered 2080-pixel rows. result a randomly addressable 4160 array with an effective pitch 7 microns and height 100 microns. incorporates parallel processing on-chip correlated double sampling. critical unique feature 32 analog row...