Absolute self-calibrated room-temperature terahertz powermeter

Christophe Pradère (1) , Jean-Pascal Caumes (1) , Jean Toutain (1) , Emmanuel Abraham (2, 3) , Bruno Chassagne (4) , Jean-Christophe Batsale (1)

1 I2M - Institut de Mécanique et d'Ingénierie de Bordeaux
2 LOMA - Laboratoire Ondes et Matière d'Aquitaine
3 CPMOH - Centre de physique moléculaire optique et hertzienne
4 ALPhANOV

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.

Mots clés: Photoconductivity; Detection

Domaines: Optique [physics.optics]; Sciences de l'ingénieur [physics]

Christophe Pradère, Jean-Pascal Caumes, Jean Toutain, Emmanuel Abraham, Bruno Chassagne, et al.. Absolute self-calibrated room-temperature terahertz powermeter. Applied optics, 2013, 52 (11), pp.2320-2324. ⟨10.1364/AO.52.002320⟩. ⟨hal-00812181⟩