Simultaneous measurement of circular dichroism and Faraday rotation at terahertz frequencies using heterodyne detection

Abstract

A far-infrared system measures the full complex Faraday angle, rotation as well as ellipticity, with an unprecedented accuracy of 10\,$\mu$rad/T. The system operates on several far-infrared laser lines in the spectral range from 0.3 to 6 THz and produces results as a continuous function of temperature from 10 to 310K and applied fields between $\pm$ 8\,T. Materials successfully measured include GaAs 2-DEG heterostructures, various high temperature superconductors including Bi${}_2$Sr${}_2$CaCu${}_2$O${}_{8+x}$, Pr${}_{2-x}$Ce${}_x$CuO${}_4$, and La${}_{2-x}$Sr${}_x$CuO${}_4$, and single crystals of the topological insulator Bi${}_2$Se${}_3$.

Submitted to Review of Scientific Instruments (RSI)

References in corpus (6)

• Topological Field Theory of Time-Reversal Invariant Insulators
• Anomalous Transport Phenomena in Fermi Liquids with Strong Magnetic Fluctuations
• Optical Hall conductivity in ordinary and graphene QHE systems
• Terahertz Kerr and Reflectivity Measurements on the Topological Insulator Bi2Se3
• Optical Hall conductivity in 2DEG and graphene QHE systems
• Terahertz magneto-transport measurements in underdoped PCCO and comparison with ARPES

Cited by in corpus (12)

• Polarization modulation time-domain terahertz polarimetry
• Far infrared cyclotron resonance and Faraday effect in Bi2Se3
• Terahertz Kerr and Reflectivity Measurements on the Topological Insulator Bi2Se3
• Terahertz Magneto Optical Polarization Modulation Spectroscopy
• Dirac cone shift of a passivated topological Bi2Se3 interface state
• A Scanning, All-Fiber Sagnac Interferometer for High Resolution Magneto-Optic Measurements at 820 nm
• Giant plateau in the THz Faraday angle in gated Bi2Se3
• Terahertz dynamics of a topologically protected state: quantum Hall effect plateaus near cyclotron resonance in a GaAs/AlGaAs heterojunction
• Polarization-sensitive terahertz time-domain spectroscopy system without mechanical moving parts
• Modified Martin-Puplett interferometer for magneto-optical Kerr effect measurements at sub-THz frequencies
• Terahertz Hall Measurements On Optimally Doped Single Crystal Bi-2212
• A broadband silicon quarter-wave retarder for far-infrared spectroscopic circular dichroism