Details

Autor(en) / Beteiligte

• Oden, Jonathan
• Meilhan, Jérome
• Lalanne-Dera, Jérémy
• Roux, Jean-François
• Garet, Frédéric
• Coutaz, Jean-Louis
• Simoens, François

Titel

Imaging of broadband terahertz beams using an array of antenna-coupled microbolometers operating at room temperature

Ist Teil von

• Optics express, 2013-02, Vol.21 (4), p.4817-4825

Ort / Verlag

United States: Optical Society of America - OSA Publishing

Erscheinungsjahr

2013

Link zum Volltext

Quelle

Free E-Journal (出版社公開部分のみ）

Beschreibungen/Notizen

• We present results of 2D real-time imaging of terahertz (THz) beam generated by a photoconductive antenna driven by a femtosecond oscillator. The detector, operating at room temperature, is a 320 x 240 array of antenna-coupled microbolometers with integrated CMOS read-out electronics delivering 25 images per second. High quality images of broadband THz beams covering the 0.1-2 THz range are recorded while maintaining a signal-to-noise ratio of 10 for detected THz power as low as 25 nW. The compactness of the easy-to-use uncooled camera makes it very useful for the alignment of systems such as THz time-domain spectrometers and for the characterization of emitters, optics and other components.