Development of submillimeter-wave 2000 pixel camera

2016 Fiscal Year Final Research Report

• Project/Area Number: 25247022
• Research Category: Grant-in-Aid for Scientific Research (A)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Astronomy
• Research Institution: National Astronomical Observatory of Japan
• Principal Investigator: Sekimoto Yutaro 国立天文台, 先端技術センター, 准教授 (70262152)
• Co-Investigator(Kenkyū-buntansha): 成瀬 雅人 埼玉大学, 理工学研究科, 助教 (10638175)
• Co-Investigator(Renkei-kenkyūsha): NITTA TOM 筑波大学, 数理物質科学研究科, 助教 (40759354) ; KIUCHI HITOSHI 国立天文台, チリ観測所, 准教授 (90358911) ; NOGUCHI TAKASHI 国立天文台, 先端技術センター, 教授 (90237826) ; MATSUO HIROSHI 国立天文台, 先端技術センター, 准教授 (90192749) ; OKADA NORIO 国立天文台, 先端技術センター, 主任研究技師 (20311178)
• Project Period (FY): 2013-04-01 – 2017-03-31
• Keywords: 広視野カメラ / ミリ波天文学 / 超伝導検出器 / 冷却光学系 / 極低温100mK

Outline of Final Research Achievements

In this research, we have developed a superconducting MKID (microwave kinetic inductance detector) camera for wide field-of-view millimeter/submillimeter-wave astronomical observations. MKIDs composed of superconducting LC resonators sense the change in superconductive impedance when Cooper pairs are broken into quasi-particles by millimeter waves. A double slot antenna for receiving submillimeter waves and silicon substrate lens-array are combined to increase light collection efficiency. We have also developed a new FFT based MKID readout system and a compact cryogenic system consisted of large diameter silicon lenses (4K objective lens) and 1K eyepiece). The MKID camera covers 2000 pixels with 4 modules of 600 pixels. To confirm the feasibility as an observation system, a demonstration of the camera was carried out at Nobeyama 45 m telescope.

Free Research Field

電波天文学