Forschungszentrum Mikrotechnik
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- Laser ablation (11)
- Y-branch splitter (11)
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Black titanium dioxide in situ generated on femtosecond laser induced periodic surface structures
(2018)
Ultrafast-laser manufacture of radially emitting optical fiber diffusers for medical applications
(2018)
Strain-tunable GaAs quantum dot: a nearly dephasing-free source of entangled photon pairs on demand
(2018)
The goal of this paper is to design a low-loss 1 x 32 Y-branch optical splitter for optical transmission systems, using two different design tools employing Beam Propagation Method. As a first step, a conventional 1 x 32 Y-branch splitter was designed and simulated in two-dimensional environment of OptiBPM photonic tool. The simulated optical properties feature high loss, high asymmetric splitting ratio and a large size of the designed structure, too. In the second step of this work we propose an optimization of the conventional splitter design leading to suppression of the asymmetric splitting ratio to one-third of its initial value and to the improvement of the losses by nearly 2 dB. In addition, 50% size reduction of the designed structure was also achieved. This length-optimized low-loss splitter was then modelled in a three-dimensional environment of RSoft photonic tool and the simulated results confirm the strong improvement of the optical properties.
Arrayed Waveguide Gratings
(2016)
Fabrication of interdigitated electrode arrays for biosensors by advanced mask aligner lithography
(2016)
This paper presents a project developed at the K.S.Rangasamy College of Technology (Tamilnadu,India) aimed at designing, implementing, and testing an autonomous multipurpose vehicle with safe, efficient, and economic operation. This autonomous vehicle moves through the crop lines of a Agricultural land and performs tasks that are tedious and/or hazardous to the farmers. First, it has been equipped for spraying, but other configurations have also been designed, such as: a seeding ,plug platform to reach the top part of the plants to perform different tasks (pruning, harvesting, etc.), and a trailer to transport the fruits, plants, and crop waste.
Application of various tools to design, simulate and evaluate optical demultiplexers based on AWG
(2015)
Calculation of accurate channel spacing of an AWG optical demultiplexer applying proportional method
(2015)
Investigations of the damage mechanisms during ultrashort pulse laser ablation of dental tissue
(2015)
Investigation of optical thin films printed on the surface of facets of photonic crystal fibers
(2015)
Compression of ultrashort laser pulses via gated multiphoton intrapulse interference phase scans
(2014)
Design of low loss 1x64 y-branch splitter having symmetric splitting ratio and small footprint
(2014)
Modern portable electronic devices have seen component heat load increasing, while the space available for heat dissipation has decreased. This requires the thermal management system to be optimized to attain the high performance heat sink. Heat sinks plays a major role for dissipating heat in electronic devices. Phase change material (PCM) is used to enhance the heat dissipation in heat sink. This paper reports the results of an experimental investigation of the performance of Pin fin heat sinks filled with phase change materials for thermal management of electronic devices. The experimental set ups are prepared with the graphical programming language with Lab VIEW (Laboratory Virtual Instruments for Engineering Workbench. Three different types of Pin fin Heat sink with and without PCM are investigated based on different operational timings and the temperature is acquired with the help of Data Acquisition Card (DAQ). The results indicated that the inclusion of the PCM could stabilize the temperature for a longer period and reduce the heating rates and peak temperatures of heat sink with increasing the number of fins can enhance the thermal performance of electronic devices.
Silicon nanophotonics
(2013)