2013 Fiscal Year Final Research Report
Basic development of high sensitivity, large format and inexpensive near-infrared image sensor
| Project/Area Number |
23244030
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| Research Category |
Grant-in-Aid for Scientific Research (A)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Astronomy
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| Research Institution | Hiroshima University |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
KAWABATA Koji 広島大学, 宇宙科学センター, 准教授 (60372702)
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| Co-Investigator(Renkei-kenkyūsha) |
YAMASHITA Takuya 国立天文台, 教授 (00211631)
UEMURA Makoto 広島大学, 宇宙科学センター, 准教授 (50403514)
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| Project Period (FY) |
2011-04-01 – 2014-03-31
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| Keywords | 天文学 / 光学赤外線天文学 / 赤外線検出器 |
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| Research Abstract |
We made performance evaluations of InGaAs near-infrared image sensor which are produced by Hamamatsu Photonics Co. Ltd. (HPK) under cold environment in collaboration with HPK. We tested a 64 x 64 pixels with 50 micron pitch array and 128 x 128 pixels with 20 micron pitch array sensors. Before testing the sensors, we developed a vacuum-cooling dewar which is dedicated to performance evaluation of optical-infrared image sensors and a sensor readout system. The evaluation system we developed is very versatile to be used for testing various types of optical-infrared image sensors. We found that 128 x 128 pixel sensor has a quantum efficiency of 80% in a wavelength region from 0.9 microns to 1.6 microns with a readout noise of 160 electrons. We fed back the results of our performance evaluation tests to the manufacturers, and define a direction to next development of new infrared image sensors.
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[Journal Article] Photopolarimetric Monitoring of Blazars in the Optical and Near-Infrared Bands with the Kanata Telescope. I. Correlations between Flux, Color, and Polarization2011
Author(s)
Ikejiri, Y., Uemura, M., Kawabata, K.~S., Yoshida, M., et al.
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Journal Title
Publications of the Astronomical Society of Japan
Volume: 63
Pages: 639
DOI
Peer Reviewed
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