Zobrazeno 41 - 50
of 109
pro vyhledávání: '"77"'
Publikováno v:
SPIE Proceedings.
We present a concept for a far-IR integral field spectrograph for SOFIA, the Cornell Mapping Spectrometer (CMS). CMS takes advantage of the next generation of large bolometer arrays to deliver moderate resolution spectroscopy in the wavelength range
Autor:
E. R. Blazejewski, D. Z. Ting, Sir B. Rafol, Sarath D. Gunapala, C. A. Shott, John K. Liu, Yun-Chorng Chang, Sanjay Krishna, Sam A. Keo, Cory J. Hill, Sumith V. Bandara, Jason M. Mumolo
Publikováno v:
SPIE Proceedings.
Epitaxially grown self-assembled InAs/InGaAs/GaAs quantum dots (QDs) are exploited for the development of large-format long-wavelength infrared (LWIR) focal plane arrays (FPAs). The Dot-in-a-Well (DWELL) structures were experimentally shown to absorb
Publikováno v:
SPIE Proceedings.
The performance of Pb 0.8 Sn 0.2 Te photodiodes and photoconductive detectors based on Pb 1-x-y Sn x Ge y Te:In epitaxial films has been investigated in a wide temperature interval and at various background fluxes. It was found that dark current of p
Autor:
Sam A. Keo, Sarath D. Gunapala, D. Z. Ting, Sumith V. Bandara, Jason M. Mumolo, C. A. Shott, Yun-Chorng Chang, Sanjay Krishna, John K. Liu, Cory J. Hill, Sir B. Rafol, E. R. Blazejewski
Publikováno v:
SPIE Proceedings.
We have exploited the artificial atom-like properties of epitaxially grown self-assembled quantum dots (QDs) for the development of high operating temperature long wavelength infrared (LWIR) focal plane arrays (FPAs). QD infrared photodetectors (QDIP
Publikováno v:
SPIE Proceedings.
The paper describes a 3-DoF translational (XYZ) mechanism for the main detector of the EMIR multi-object spectrograph, developed for the GTC telescope. This mechanism is designed for the cryogenic environment (77 K) and consists of a parallel manipul
Autor:
Seiichiro Ariyoshi, Chiko Otani, Takashi Okaniwa, Hiroshi Matsuo, Yuko Mori, M. Nakahashi, Hiromi Sato
Publikováno v:
SPIE Proceedings.
We have developed the superconductive imaging submillimeter-wave camera with nine detector elements (SISCAM-9) for Atacama Submillimeter Telescope Experiment (ASTE). SISCAM-9 has nine SIS photon detectors as focal plane array detector at 680 GHz. To
Autor:
E. R. Blazejewski, Sumith V. Bandara, Sir B. Rafol, Cory J. Hill, Sanjay Krishna, John K. Liu, Sam A. Keo, Sarath D. Gunapala, David Z. Ting, Y. C. Chang, Jason M. Mumolo, C. A. Shott
Publikováno v:
SPIE Proceedings.
We have exploited the artificial atomlike properties of epitaxially self-assembled quantum dots for the development of high operating temperature long wavelength infrared (LWIR) focal plane arrays. Quantum dots are nanometer-scale islands that form s
Autor:
F. F. Sizov, V. N. Dobrovolsky
Publikováno v:
SPIE Proceedings.
A model of fast Semiconductor Hot Electron Bolometer (SHEB) is developed. In this bolometer radiation heats only electrons in bipolar semiconductor without inertial lattice heating. For conditions proposed, such heating changes both generation and re
Publikováno v:
SPIE Proceedings.
Based on the mature and reproducible HgCdTe process developed by CEA-LETI-Infrared Laboratory and industrialized by Sofradir, two new detectors with a cut-off wavelength tuned between 9 μm and 12 μm have been developed. For compact LW cameras, Sofr
Autor:
Chris C. Shaw, Tianpeng Wang, Xinming Liu, Lingyun Chen, S. Cheeenu Kappadath, Shu-Ju Tu, Chao-Jen Lai, M Altunbas
Publikováno v:
Medical Imaging 2005: Physics of Medical Imaging.
This paper investigates the feasibility of using a flat panel based cone-beam computer tomography (CT) system for 3-D breast imaging with computer simulation and imaging experiments. In our simulation study, 3-D phantoms were analytically modeled to