Absolute self-calibrated room-temperature terahertz powermeter

摘要

Coupling optical and thermal properties of a terahertz (THz) thermal converter based on the Seebeck effect provides an unsupplied room-temperature measuring device dedicated to THz power metrology. Performance characteristics such as broadband response (0-30 THz), high sensitivity (<25 μW · Hz~(-0.5)), and the possibility to develop an internal absolute self-calibration estimated at 9.93 W · V~(-1) are reported. Advantages and drawbacks of this THz powermeter are discussed.