Zobrazeno 1 - 10
of 18
pro vyhledávání: '"Seth Calhoun"'
Autor:
Jonathan R. Brescia, Justin W. Cleary, Seth Calhoun, Rachel N. Evans, Robert E. Peale, Evan M. Smith
Publikováno v:
MRS Advances. 4:667-674
Metal–insulator–metal (MIM) resonant absorbers comprise a conducting ground plane, a dielectric of thickness t, and thin separated metal top-surface structures of dimension l. The fundamental resonance wavelength is predicted by an analytic stand
Publikováno v:
MRS Advances. 4:851-855
Thermoelectric (TE) thin films have promise for harvesting electrical energy from waste heat. We demonstrate TE materials and thermocouples deposited by aqueous spray deposition on glass. The n-type material was CdO doped with Mn and Sn. Two p-type m
Autor:
Robert E. Peale, Justin W. Cleary, Debashis Chanda, Evan M. Smith, Isaiah O. Oladeji, Sayan Chandra, Cameron Nickle, Rachel N. Evans, Seth Calhoun
Publikováno v:
MRS Advances. 3:2777-2782
Vanadium Oxide has application to infrared bolometers due to high temperature coefficient of resistivity (TCR). It has attracted interest for switchable plasmonic devices due to its metal to insulator transition near room temperature. We report here
Autor:
Vanessa C. Lowry, Jonathan R. Brescia, Janardan Nath, Robert E. Peale, Evan M. Smith, Chris J. Fredricksen, Reid Stack, Rachel N. Evans, Justin W. Cleary, Seth Calhoun
Publikováno v:
MRS Communications. 8:830-834
Metal-insulator-metal (MIM) resonant absorbers comprise a conducting ground plane, a thin dielectric, and thin separated metal top-surface structures. The dielectric SiO2 strongly absorbs near 9 μm wavelength and has correspondingly strong long-wave
Autor:
Evan M. Smith, Justin W. Cleary, Imen Rezadad, Sarmad Fawzi Hamza Alhasan, Robert E. Peale, Isaiah O. Oladeji, Vanessa C. Lowry, Hussain Abouelkhair, Seth Calhoun
Publikováno v:
MRS Advances. 3:255-260
Self-assembled TiO2 films deposited by aqueous-spray deposition were investigated to evaluate morphology, crystalline phase, and infrared optical constants. The Anatase nano-crystalline film had ∼10 nm characteristic surface roughness sparsely punc
Autor:
Isaiah O. Oladeji, Justin W. Cleary, Pedro Figueiredo, Evan M. Smith, Robert E. Peale, Seth Calhoun, Hussain Abouelkhair, Chris J. Fredricksen
Publikováno v:
MRS Advances. 3:291-297
Ternary lead chalcogenides, such as PbSxSe1-x, offer the possibility of room-temperature infrared detection with engineered cut-off wavelengths within the important 3-5 micron mid-wave infrared (MWIR) wavelength range. We present growth and character
Autor:
Joshua R. Hendrickson, Justin W. Cleary, Shivashankar Vangala, Kevin D. Leedy, Chris J. Fredricksen, Robert E. Peale, Evan M. Smith, Seth Calhoun
Publikováno v:
MRS Advances. 2:2281-2286
Addition of wavelength selective absorbers on microbolometers tends to increase their thermal mass and slow their infrared response times. Making the bolometric material an integral part of the absorber and minimizing layer thicknesses is one possibl
Multispectral Plasmonic Perfect Absorbers Integrated with Room-Temperature VOx Air-Bridge Bolometers
Autor:
Shivashankar Vangala, Justin W. Cleary, Evan M. Smith, Seth Calhoun, Chad Spence, Sara R. DeMonaco, Robert E. Peale
Publikováno v:
2019 IEEE Research and Applications of Photonics in Defense Conference (RAPID).
Room-temperature microbolometer arrays with sensitivity in narrow wavelength bands for spectral imaging in the mid-wave and long-wave infrared are described. The approach is based on vanadium-oxide air-bridge bolometers that are integrated with plasm
Autor:
H. M. Quddusi, Timothy A. Lachenmeier, Joshua Colwell, Russell G. Dewey, Sebastian Padilla, Alan Stern, D. Maukonen, Robert E. Peale, Seth Calhoun, C. J. Fredricksen, Rolfe Bode, Andrei V. Muraviev
Publikováno v:
Sensors for Extreme Harsh Environments II.
The Planetary Atmospheres Minor Species Sensor (PAMSS) is an intracavity laser absorption spectrometer that uses a mid-infrared quantum cascade laser in an open external cavity for sensing ultra-trace gases with parts-per-billion sensitivity. PAMSS w
Autor:
Seth Calhoun, Edward Alan Dein, John Lannon, Aubrey Coffey, Kevin R. Coffey, Scott Goodwin, Robert E. Peale, Joseph D. LaVeigne, Gregory Franks, Stephen Trewick, C. J. Fredricksen, Tom Danielson
Publikováno v:
SPIE Proceedings.
High pixel temperatures for IR scene projector arrays face materials challenges of oxidation, diffusion, and recrystallization. For cost effective development of new high-temperature materials, we have designed and fabricated simplified pixels for te