Details

Autor(en) / Beteiligte

• Wienold, M.
• Hagelschuer, T.
• Rothbart, N.
• Schrottke, L.
• Biermann, K.
• Grahn, H. T.
• Hübers, H.-W.

Titel

Real-time terahertz imaging through self-mixing in a quantum-cascade laser

Ist Teil von

• Applied physics letters, 2016-07, Vol.109 (1)

Ort / Verlag

Melville: American Institute of Physics

Erscheinungsjahr

2016

Quelle

AIP Journals (American Institute of Physics)

Beschreibungen/Notizen

• We report on a fast self-mixing approach for real-time, coherent terahertz imaging based on a quantum-cascade laser and a scanning mirror. Due to a fast deflection of the terahertz beam, images with frame rates up to several Hz are obtained, eventually limited by the mechanical inertia of the employed scanning mirror. A phase modulation technique allows for the separation of the amplitude and phase information without the necessity of parameter fitting routines. We further demonstrate the potential for transmission imaging.