2021 46th International Conference on Infrared, Millimeter and Terahertz Waves (IRMMW-THz), Aug 2021, Chengdu, China. ⟨10.1109/IRMMW-THz50926.2021.9567537⟩. ⟨hal-03584687⟩

Communication dans un congrès

Beyond the Dynamic range approach In noise evaluation for Terahertz Time domain spectrometers

Clemence Muller, Melanie Lavancier, Jeyan Bichon, Theo Hannotte, Jean-Francois Lampin, Sophie Eliet, Romain Peretti

THz-TDS is used for a myriad of purposes. Still today, the usual way to compare different system in terms of signal to noise ratio is to look at the dynamic range. We propose here a more reliable method based on statistics and will show results on two systems (Toptica and Menlo).

2021 46th International Conference on Infrared, Millimeter and Terahertz Waves (IRMMW-THz), Aug 2021, Chengdu, China. pp.1-2, ⟨10.1109/IRMMW-THz50926.2021.9566941⟩. ⟨hal-03500148⟩

Communication dans un congrès

THz s-SNOM imaging of logarithmic spiral antennas

C. Santos, Louis Thomas, Théo Hannotte, Melanie Lavancier, Sophie Eliet, Jean-Francois Lampin, Romain Peretti

Probing the near-field of photonic components at sub-wavelength scale is of high interest to improve the design of future THz devices. We report on the THz near-field imaging of logarithmic spiral antennas by scattering-type scanning near-field optical microscopy (s-SNOM). Our results demonstrate…

2021 46th International Conference on Infrared, Millimeter and Terahertz Waves (IRMMW-THz), Aug 2021, Chengdu, China. pp.1-2, ⟨10.1109/IRMMW-THz50926.2021.9567111⟩. ⟨hal-03467373⟩

Communication dans un congrès

Complex refractive indices in the TeraHertz domain of samples from atmospheric aerosol sources

Jeyan Bichon, Melanie Lavancier, Denis Petitprez, Alexandre Deguine, D. Hourlier-Bahloul, Karine Deboudt, Hervé Herbin, Guillaume Ducournau, Romain Peretti, Sophie Eliet

We report the TeraHertz (THz) characterization of calcium carbonate (CaCO3) particles, one of the major components of desert dust, to determine the real and imaginary parts of their complex refractive indices. The optical characterization is done by TeraHertz Time Domain Spectroscopy (THz-TDS)…

2021 46th International Conference on Infrared, Millimeter and Terahertz Waves (IRMMW-THz), Aug 2021, Chengdu, China. pp.1163, ⟨10.1109/irmmw-thz50926.2021.9566988⟩. ⟨hal-03403999⟩

Communication dans un congrès

[Invited] Locking of terahertz semiconductor dual-comb laser sources

Hua Li, Yiran Zhao, Ziping Li, Kang Zhou, J. Cao, Dong Xu, S Barbieri

We report on an active stabilization of a terahertz quantum cascade laser (QCL) dual-comb source by phase locking one of the dual-comb lines. Although only one dual-comb line is locked, the phase noise of other dual-comb lines close to the phase locked line is significantly reduced. Furthermore, it…

2021 46th International Conference on Infrared, Millimeter and Terahertz Waves (IRMMW-THz), Aug 2021, Chengdu, China. pp.1-2, ⟨10.1109/IRMMW-THz50926.2021.9567050⟩. ⟨hal-03448750⟩

Communication dans un congrès

A criterion to compare permittivity models in the terahertz range

Melanie Lavancier, Nabil Vindas Yassine, Juliette Vlieghe, Jean-Francois Lampin, Romain Peretti

We present a method to take experimental noise in THz-TDS into account during the fitting process. With its implementation in our software fit@TDS, we were able to fit accurately the spectrum of the golden sample: a lactose pellet.

2021 46th International Conference on Infrared, Millimeter and Terahertz Waves (IRMMW-THz), Aug 2021, Chengdu, China. pp.1-2, ⟨10.1109/IRMMW-THz50926.2021.9567242⟩. ⟨hal-03584667⟩

Communication dans un congrès

SiGe Based LNA for Data Communication Applications at 211 GHz

Haitham Ghanem, Sylvie Lepilliet, Daniel Gloria, Francois Danneville, Guillaume Ducournau

We report the use of a silicon based 211 GHz preamplifier for THz links. A test bench setup is assembled to evaluate the performance of the amplifier using a uni-traveling-carrier photodiode (UTC-PD) as the source of a 5Gbps modulated signal. The Bit Error Rate curve was extracted versus the input…

2021 46th International Conference on Infrared, Millimeter and Terahertz Waves (IRMMW-THz), Aug 2021, Chengdu, China. pp.1-2, ⟨10.1109/IRMMW-THz50926.2021.9567152⟩. ⟨hal-03584574⟩