Search Results - "SCHELL, MARTIN"
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1
Influence and adjustment of carrier lifetimes in InGaAs/InAlAs photoconductive pulsed terahertz detectors: 6 THz bandwidth and 90dB dynamic range
Published in Optics express (11-08-2014)“…We investigate the influence of Beryllium (Be) doping on the performance of photoconductive THz detectors based on molecular beam epitaxy (MBE) of low…”
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2
Optoelectronic frequency-modulated continuous-wave terahertz spectroscopy with 4 THz bandwidth
Published in Nature communications (16-02-2021)“…Broadband terahertz spectroscopy enables many promising applications in science and industry alike. However, the complexity of existing terahertz systems has…”
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3
Highly efficient passive InP polarization rotator-splitter
Published in Optics express (02-09-2019)“…Monolithically integrated polarization beam splitters (PBSs) are needed to reduce the form-factor and assembly cost of optical coherent receivers. A highly…”
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4
Ultra-fast, High-Bandwidth Coherent cw THz Spectrometer for Non-destructive Testing
Published in Journal of infrared, millimeter and terahertz waves (15-03-2019)“…Continuous wave THz (cw THz) systems define the state-of-the-art in terms of spectral resolution in THz spectroscopy. Hitherto, acquisition of broadband…”
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5
Fabrication Tolerant Integrated Polarization Rotator Design Using the Jones Calculus
Published in Journal of lightwave technology (01-07-2019)“…A fabrication tolerant polarization rotator (PR) building block is added to our generic photonic integration technology. Using asymmetric waveguides, we…”
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6
Recent Developments in Polymer-Based Photonic Components for Disruptive Capacity Upgrade in Data Centers
Published in Journal of lightwave technology (15-02-2017)“…Recently developed photonic components for nextgeneration datacenter systems based on the Heinrich Hertz Institute's PolyBoard integration platform are…”
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7
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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8
Novel Photodetector Chip for Polarization Diverse Detection
Published in Journal of lightwave technology (15-08-2019)“…A new photodetector chip for polarization diverse detection is presented. The presented chip allows for smaller footprints and design simplifications by…”
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9
Miniaturized continuous-wave terahertz spectrometer with 3.6 THz bandwidth enabled by photonic integration and microelectronics
Published in IEEE access (01-01-2024)“…Broadband terahertz spectroscopy is a valuable analytical tool in science and a promising technology for industrial non-destructive, non-contact testing, e.g…”
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10
Fiber Coupled Transceiver with 6.5 THz Bandwidth for Terahertz Time-Domain Spectroscopy in Reflection Geometry
Published in Sensors (Basel, Switzerland) (04-05-2020)“…We present a fiber coupled transceiver head for terahertz (THz) time-domain reflection measurements. The monolithically integrated transceiver chip is based on…”
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11
InP-Based Foundry PICs for Optical Interconnects
Published in Applied sciences (17-04-2019)“…This paper describes a fabrication process for realizing Indium-Phosphide-based photonic-integrated circuits (PICs) with a high level of integration to target…”
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12
Optoelectronic Heterodyne THz Receiver for 100-300 GHz Communication Links
Published in IEEE access (2024)“…Terahertz wireless communications is an increasingly interesting research topic due to the high demand for un-allocated channels and high data rates. Photonic…”
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13
Repeatable Passive Fiber Optic Coupling of Single-Mode Waveguides in High-Precision Disposable Photonic Biosensors
Published in Photonics (01-06-2024)“…This research demonstrates a method for the repeatable passive fiber optic coupling of single-mode waveguides with a micron-scale accuracy for high-precision…”
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14
Graphene-based electro-absorption modulator integrated in a passive polymer waveguide platform
Published in Optical materials express (01-06-2016)“…A graphene-based electro-absorption modulator has been integrated into a passive polymer waveguide platform for the first time. The opto-electronic properties…”
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15
Colinguals among bilinguals
Published in World Englishes (01-02-2008)“…Discussions about intranational uses of English tend to follow the predominant theme of international uses, namely communication between people who do not have…”
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16
InP-Components for 100 GBaud Optical Data Center Communication
Published in Photonics (01-01-2021)“…Externally modulated DFB lasers (EML) and vertically illuminated photodetectors are presented. Because of their excellent high-speed behavior and operation…”
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17
Polarimetry for Photonic Integrated Circuits
Published in Applied sciences (2019)“…Photonic integrated circuits (PICs) play a key role in a wide range of applications. Very often, the performance of PICs depends strongly on the state of…”
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18
Hybrid Photonic Integration on a Polymer Platform
Published in Photonics (01-09-2015)“…To fulfill the functionality demands from the fast developing optical networks, a hybrid integration approach allows for combining the advantages of various…”
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Journal Article Book Review -
19
THz generation at 1.55 µm excitation: six-fold increase in THz conversion efficiency by separated photoconductive and trapping regions
Published in Optics express (19-12-2011)“…We present first results on photoconductive THz emitters for 1.55µm excitation. The emitters are based on MBE grown In0.53Ga0.47As/In0.52Al0.48As multilayer…”
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20
High-Speed Photodiodes for Power Efficient Data Transmission
Published in Journal of lightwave technology (01-02-2024)“…This paper highlights recent developments in high-speed photodiodes and their role in efficient data transmission. Design considerations and state-of-the-art…”
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