Development of narrow band time-domain terahertz sources and their applications

2015 Fiscal Year Final Research Report

• Project/Area Number: 25249049
• Research Category: Grant-in-Aid for Scientific Research (A)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Electron device/Electronic equipment
• Research Institution: Osaka University
• Principal Investigator: Tonouchi Masayoshi 大阪大学, レーザーエネルギー学研究センター, 教授 (40207593)
• Co-Investigator(Renkei-kenkyūsha): KAWAYAMA Iwao 大阪大学, レーザーエネルギー学研究センター, 准教授 (10332264)
• Project Period (FY): 2013-05-31 – 2016-03-31
• Keywords: テラヘルツ波 / 狭帯域 / 周波数可変 / 時間領域

Outline of Final Research Achievements

A frequency tunable, narrow band, high intense THz wave generation system has been develoed. This system can be used for simultaneous measurement of waveform and pulse energy, and can produce frequency and bandwidth tunable multi-cycle THz pulses by optical rectification of femtosecond laser pulses using binary phase mask and lithium niobate single crystal. The central frequency can be tuned by varying period of the phase mask. The power of generated narrow band THz wave can be measured using a superconducting edge triggered bolometer. Uncooled microbolometer-based THz imagers were characterized using that system.

Free Research Field

テラヘルツ工学