The Reflection Grating Spectrometer on-board XMM-Newton: Status of the Calibrations
The ESA X-ray Multi Mirror mission, XMM-Newton, carries two identical Reflection Grating Spectrometers (RGS) behind two of its three nested sets of Wolter I type mirrors.
J. Herder
semanticscholar +1 more source
Light‐Emitting Diodes Based on Metal Halide Perovskite and Perovskite Related Nanocrystals
The review covers the past and current developments in light‐emitting diodes (LEDs) exploiting nanocrystals of halide perovskites and perovskite‐related materials. The review examines the aspects of material optimizations, device engineering, and applications.
Ying Liu+7 more
wiley +1 more source
Distributed delay-line interferometer based on a Bragg grating in transmission mode [PDF]
A novel approach for a delay line interferometer (DLI) based purely on forward Bragg scattering is proposed. We have numerically and experimentally demonstrated that a Bragg grating can deliver the functionality of a DLI in its transmission mode along a single common interfering optical path, instead of the conventional DLI implementation with two ...
arxiv
Van Der Waals Hybrid Integration of 2D Semimetals for Broadband Photodetection
Advanced broadband photodetector technologies are essential for military and civilian applications. 2D semimetals, with their gapless band structures, high mobility, and topological protection, offer great promise for broadband PDs. This study reviews the latest advancements in broadband PDs utilizing heterostructures that combine 2D semimetals with ...
Xue Li+9 more
wiley +1 more source
An experimental method of presenting the principles determining the general properties of optical gratings [PDF]
Alexander McAulay
openalex +1 more source
Grating Couplers for Coupling between Optical Fibers and Nanophotonic Waveguides
Nanophotonic waveguides and components are promising for use in the large-scale integration of photonic circuits. Coupling light between nanophotonic waveguides and a single-mode fiber is an important problem and many different solutions have been ...
D. Taillaert+6 more
semanticscholar +1 more source
CMOS-compatible high efficiency double-etched apodized waveguide grating coupler.
We present a high efficiency double-etched apodized fiber-to-waveguide grating coupler on a silicon-on-insulator substrate, which can be fabricated using deep UV photolithography. The fabricated grating coupler yields a coupling loss of -1.5 dB with 3-dB
C. Li, Huijuan Zhang, Mingbin Yu, G. Lo
semanticscholar +1 more source
Thermal Processing Creates Water‐Stable PEDOT:PSS Films for Bioelectronics
Instead of using chemical cross–linkers, it is shown that PEDOT:PSS thin films for bioelectronics become water‐stable after a simple heat treatment. The heat treatment is compatible with a range of rigid and elastomeric substrates and films are stable in vivo for >20 days.
Siddharth Doshi+16 more
wiley +1 more source
Temperature Monitoring in PIC Surface
In this work we present the extended work of the previously proposed scheme for in-PIC temperature monitoring. This can be used in any photonic integrated circuitry platform, allowing simplified temperature monitoring and improved independence of the ...
Sushma Pandey+2 more
doaj +1 more source
Long period fiber gratings induced by mechanical resonance [PDF]
We present a simple, and robust method for writing long period fiber gratings with low polarization dependent losses. Our method is based on utilizing mechanical vibrations of the tapered fiber while pooling it. Our method enables real-time tunability of the periodicity, efficiency and length of the grating.
arxiv