Efficient Broadband Terahertz Generation in BNA Organic Crystals at Ytterbium Laser Wavelength

Gollner, Claudia; Lee, Hovan; Xi, Jiaqi; Weber, Cédric; Söllinger, Elisa; Stummer, Vinzenz; Baltuška, Andrius; Zhang, Yan; Pugžlys, Audrius; Shalaby, Mostafa

doi:10.1109/irmmw-thz46771.2020.9370510

Cited by 3 publications

(1 citation statement)

References 3 publications

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“…The first is an optical method in which the laser beam (frequencies in the THz range (10 15 Hz), mainly pulsed, with low power) is converted to the THz range [3]. Nonlinear crystals [4], photoconductive antennas [5] and free electron lasers (FEL-Free Electron Laser) [6] are used to achieve the THz range. The second method is the so-called electronic method, where microwaves (frequencies in the GHz range, mainly continuous waves and higher powers) are converted up to the THz range [2].…”

Section: Introductionmentioning

confidence: 99%

Position Sensing with a Compact 0.1 THz Amplitude Modulated Source

2022

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Position determination is an important manufacturing process in many modern industries. The objective of this paper is to present an affordable measurement system that can replace optical position measurement with a laser beam in an opaque environment that prevents the laser beam from penetrating through the fog of gases or other materials that are opaque to optical light. THz waves are a good example of replacing a laser beam, as shown in this article. It is known that THz rays can penetrate fabrics, wood, Styrofoam, etc. The triangulation method using an amplitude modulated THz source proved to be a cost-effective solution for position determination in opaque environments.

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Section: Introductionmentioning

confidence: 99%

Position Sensing with a Compact 0.1 THz Amplitude Modulated Source

2022

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Broadband, high power THz source at 540 kHz using organic crystal BNA

et al. 2023

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We demonstrate efficient optical rectification in the organic crystal BNA (N-benzyl-2-methyl-4-nitroaniline), driven by a temporally compressed, commercially available industrial Yb-laser system operating at a 540 kHz repetition rate. Our terahertz (THz) source reaches 5.6 mW of THz average power driven by 4.7 W, 45 fs pulses, and the resulting THz-time domain spectroscopy combines a very broad bandwidth of 7.5 THz and a high dynamic range of 75 dB (in a measurement time of 70 s). The conversion efficiency at maximum THz power is 0.12%. To the best of our knowledge, this is the highest THz power so far demonstrated with BNA, achieved at a high repetition rate and enabling to demonstrate a unique combination of bandwidth and dynamic range for THz-spectroscopy applications.

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978 Nm All-Polarization-Maintaining Mode-Locked Fiber Laser Based on Phase-Biased Nonlinear Amplifying Loop Mirror

Wang

Jia

et al. 2023

IEEE J. Select. Topics Quantum Electron.

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Efficient Broadband Terahertz Generation in BNA Organic Crystals at Ytterbium Laser Wavelength

Cited by 3 publications

References 3 publications

Position Sensing with a Compact 0.1 THz Amplitude Modulated Source

Position Sensing with a Compact 0.1 THz Amplitude Modulated Source

Broadband, high power THz source at 540 kHz using organic crystal BNA

978 Nm All-Polarization-Maintaining Mode-Locked Fiber Laser Based on Phase-Biased Nonlinear Amplifying Loop Mirror

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