Search Results - "Balzer, Jan"
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Periodic sampling errors in terahertz time-domain measurements
Published in Optics express (20-03-2017)“…An extensive investigation of the origin and the impact of periodic sampling errors of terahertz time-domain spectroscopy systems is given. We present…”
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Enhancing the performance of THz quasi time-domain spectroscopy systems by low duty cycle laser operation
Published in Optics express (10-12-2018)“…We investigate the performance of terahertz (THz) quasi time-domain systems (QTDS) driven by electrically pulsed multi-mode laser diodes operating at 659 nm…”
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3
Repetition frequency tunability and stability of BH InAs/InP QD and InGaAsP/InP QW two-section mode-locked laser diodes
Published in Optics express (12-09-2022)“…Ultra-high repetition rate (UHRR) mode-locked laser diodes (MLLD) have shown promising results for applications based on optical sampling such as asynchronous…”
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4
Laser diode based THz-TDS system with 133 dB peak signal-to-noise ratio at 100 GHz
Published in Scientific reports (18-08-2023)“…Terahertz time-domain spectroscopy (THz-TDS) has emerged as a powerful and versatile tool in various scientific fields. These include—among others—imaging,…”
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5
Material Classification for Terahertz Images Based on Neural Networks
Published in IEEE access (2022)“…Terahertz time-domain spectroscopy enables the extraction of electrical properties from materials. An extraction of the complex permittivity can be carried out…”
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Ultra-High Repetition Rate Terahertz Time-Domain Spectroscopy for Micrometer Layer Thickness Measurement
Published in Sensors (Basel, Switzerland) (10-08-2021)“…Terahertz time-domain spectroscopy systems driven by monolithic mode-locked laser diodes (MLLDs) exhibit bandwidths exceeding 1 THz and a peak dynamic range…”
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7
Group velocity dispersion in high-performance BH InAs/InP QD and InGaAsP/InP QW two-section passively mode-locked lasers
Published in Optics express (04-07-2022)“…High-performance buried heterostructure (BH) C-band InAs/InP quantum dot (QD) and L-band InGaAsP/InP quantum well (QW) two-section passively mode-locked lasers…”
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8
THz Optics 3D Printed with TOPAS
Published in Journal of infrared, millimeter and terahertz waves (01-04-2016)Get full text
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A Highly Frequency-Selective 3D-Printed Dielectric Structure for the Terahertz Range
Published in Journal of infrared, millimeter and terahertz waves (01-04-2024)“…In this paper, we present a terahertz transmission frequency-selective quasi surface (FSQS) that exhibits strong absorption lines and a periodic band-pass…”
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10
System-theoretical modeling of terahertz time-domain spectroscopy with ultra-high repetition rate mode-locked lasers
Published in Optics express (25-05-2020)“…Terahertz time-domain spectroscopy (THz-TDS) systems based on ultra-high repetition rate mode-locked laser diodes (MLLDs) and semiconductor photomixers show…”
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11
Could photoluminescence spectroscopy be an alternative technique for the detection of microplastics? First experiments using a 405 nm laser for excitation
Published in Applied physics. B, Lasers and optics (01-01-2020)“…We performed first experiments to evaluate the potential of photoluminescence spectroscopy to detect microplastics using a 405 nm laser diode for sample…”
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12
Terahertz Beam Steering Concept Based on a MEMS-Reconfigurable Reflection Grating
Published in Sensors (Basel, Switzerland) (19-05-2020)“…With an increasing number of applications of terahertz systems in industrial fields and communications, terahertz beamforming and beam steering techniques are…”
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13
Refractive Index Resolved Imaging Enabled by Terahertz Time-Domain Spectroscopy Ellipsometry
Published in Journal of infrared, millimeter and terahertz waves (01-12-2024)“…Material characterization in the terahertz range is an interesting topic of research due to its great applications in material science, health monitoring, and…”
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Application of a robotic THz imaging system for sub-surface analysis of ancient human remains
Published in Scientific reports (04-03-2019)“…We used a robotic-based THz imaging system to investigate the sub-surface structure of an artificially mummified ancient Egyptian human left hand. The results…”
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15
Wideband Beam Steering Concept for Terahertz Time-Domain Spectroscopy: Theoretical Considerations
Published in Sensors (Basel, Switzerland) (28-09-2020)“…Photonic true time delay beam steering on the transmitter side of terahertz time-domain spectroscopy (THz TDS) systems requires many wideband variable optical…”
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Photonic Crystal Resonator in the Millimeter/Terahertz Range as a Thin Film Sensor for Future Biosensor Applications
Published in Journal of infrared, millimeter and terahertz waves (01-06-2022)“…With recent developments, terahertz (THz) technology has attracted great interest in many different fields of research and application. In particular,…”
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17
3D Printed Al2O3 for Terahertz Technology
Published in IEEE access (2021)“…In this work we demonstrate that 3D printed Al 2 O 3 is a promising material for prototyping and precise fabrication of quasi-optical devices in the terahertz…”
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18
Terahertz quasi time-domain spectroscopy based on telecom technology for 1550 nm
Published in Optics express (29-05-2017)“…We present a fiber-coupled terahertz quasi time-domain spectroscopy system driven by a laser with a central wavelength of 1550 nm. By using a commercially…”
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3D THz-TDS SAR Imaging by an Inverse Synthetic Cylindrical Aperture
Published in IEEE access (01-01-2023)“…Terahertz time-domain spectroscopy (THz-TDS) is a promising tool for high-resolution 3D imaging of objects due to the high center frequency and bandwidth…”
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Repeatability of material parameter extraction of liquids from transmission terahertz time-domain measurements
Published in Optics express (14-09-2020)“…Recently, many research groups worldwide have reported on the THz properties of liquids. Often these parameters, i.e., refractive index and absorption…”
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