Temperature-dependent Sellmeier equation at terahertz frequency range for 1 mol % MgO-doped stoichiometric lithium tantalate

Lee, K. S. ; Ko, D. K., ; Yu, N. E.AbstractWe first examined a temperature-dependent Sellmeier equation for the extraordinary refractive index of MgO-doped stoichiometric LiTaO3 (MgO:SLT) crystal via frequency-tunable narrowband terahertz (THz) generation at 0.4–1.8...

Preparation, characterization, Raman, and terahertz spectroscopy study on carbon nanotubes, graphene nano-sheets, and onion like carbon materials

A. Abouelsayed ; Badawi Anis ; Safwat Hassaballa ; Ahmed S.G. Khalil ; Usama M. Rashed ; Kamal A. Eid ; Emad Al-Ashkar ; W. El hotabyAbstractWe present the optical properties of carbon nanotubes, graphene nanosheets, and onion like carbon (OLC) samples with different...

Depth resolution enhancement of terahertz deconvolution by autoregressive spectral extrapolation

Dong, J. ; Locquet, A. ; Citrin, D. S.AbstractThis Letter presents a method for enhancing the depth resolution of terahertz deconvolution based on autoregressive (AR) spectral extrapolation. The terahertz frequency components with a high signal-to-noise ratio (SNR)...

Preparation, characterization, Raman, and terahertz spectroscopy study on carbon nanotubes, graphene nano-sheets, and onion like carbon materials

Abouelsayed, A. ; Anis, B. ; Hassaballa, S. ; Khalil, A. S. ; Rashed, U. M. ; Eid, K. A. ; Al-Ashkar, E.AbstractWe present the optical properties of carbon nanotubes, graphene nanosheets, and onion like carbon (OLC) samples with different cages size in wide frequency...

A terahertz in-line polarization converter based on through-via connected double layer slot structures

Woo, Jeong Min, Sajid Hussain, and Jae-Hyung Jang.AbstractA terahertz (THz) in-line polarization converter that yields a polarization conversion ratio as high as 99.9% is demonstrated at 1 THz. It has double-layer slot structures oriented in orthogonal directions that...