<italic>In Situ</italic> High-Temperature Raman
In this study, a fiber-optic Raman probe was combined with the concept of high-temperature Raman spectroscopy to perform in situ high-temperature Raman analysis.
In this study, a fiber-optic Raman probe was combined with the concept of high-temperature Raman spectroscopy to perform in situ high-temperature Raman analysis.
Three samples were evaluated to demonstrate the functionality of the high-temperature fiber-optic Raman probe. Room temperature and high-temperature Raman spectra were successfully
Finite element simulations are used to determine the power and environmental conditions required to run devices at specific elevated temperatures in order to properly accelerate and measure the life of
In this paper we present a validation of distributed Raman temperature sensing (RDTS) at the CERN high energy accelerator mixed field radiation test facility (CHARM), newly developed in
Because Raman scattering is an extremely weak effect (approx. 1 in 107 photons of the incident radiation), the key challenge of high-temperature Raman measurements is registration of weak
The semiconductor industry has standardized on referring MTTF to the highest temperature within the device and not the measured temperature, and so it is necessary to know the relationship between
Temperature-dependent (TD) Raman microscopy is a powerful and non-destructive method that can probe the thermal and electronic properties of semiconductor materials with sub-micron spatial
The methods of the registration of high-temperature Raman spectra were considered. Particular attention was paid to considering the systems on time
Keywords: Raman thermography, channel temperature, lifetime testing, GaN-on-SiC, manufacture, reliability Abstract Reliability testing of GaN High Electron Mobility Transistors critically relies on the
Prospects are given how Raman spectroscopy can provide valuable insights into the understanding of processes that are operated at high pressures and high temperature. At high
Raman spectroscopy has a long-standing reputation as a powerful tool for structural investigation of the various materials. However, application of this technique to
Measurements of surface temperatures and heat transfer under high-temperature flow conditions are desired for the greatest fidelity with turbine operating conditions. Raman spectroscopy allows
Explore the high temperature Raman measurement techniques in this informative blog. Discover how time-resolved techniques, UV excitation, and
These results indicate the need for phan-tom-based test methods for the standardized evaluation of Raman devices, as specifications alone are likely insufficient to predict in vivo performance.
ABSTRACT Measurement is a vital step in thermal device model verification. We present a static/transient measurement and simulation study of a GaN high power pulsed transistor. Time
Because Raman scattering is an extremely weak effect (approx. 1 in 10 7 photons of the incident radiation), the key challenge of high-temperature Raman
This study investigates the application of multi-mode Raman thermography for simultaneous stress and temperature analysis in semiconductor materials, including silicon wafers, gallium nitride (GaN) thin
Raman amplification arising from the excitation of a density echelon in plasma could lead to amplifiers that significantly exceed current power limits of conventional laser media. Here we show
Brillouin optical fiber sensing can measure the temperature and strain distribution along the optical fiber 20 – 24, and can obtain a high spatial resolution for long sensing distances. Raman optical fiber
Summary s presents an overview of Raman amplifiers in fibre optic transmission systems. Detailed analysis of the nonlinear accumulated noise and relative intensity noise (RI ) induced penalties are
This Recommendation describes the classification, the type code and the reference models of various Raman amplifiers. It also outlines the general characteristics of Raman amplifiers, and defines the
Raman spectroscopy is a very powerful tool for material analysis, allowing for exploring the properties of a wide range of different materials. Since
Another set of experiments was designed to test the long-time reproducibility of the Raman spectrometer and its response to the variability of ambient condi- tions in the laboratory.
In addition, Raman pressure gauges (e.g., cBN or 13 C diamond) allow for pressure measurements in chemically reactive environments at high pressures and temperatures (e.g., Goncharov et al., 2005a;
Raman amplification arising from the excitation of a density echelon in plasma could lead to amplifiers that significantly exceed current power limits of
Our study provided a significant contribution to the development of high-speed Raman temperature sensors that exhibit a high degree of compatibility with existing strain sensors.
In this paper, we report what we believe is the first detailed study of the temperature dependence of the first-order Raman spectrum in natural diamond at temperatures above 1000 K.
In this report, we review the recommendations and specifications contained within current standards documents regarding performance evaluation of Raman spectrometers. These methods are then
If the material is able to dissipate the heat effectively, localized temperature increases will not be high and solvent flammability hazards will remain low. On the other hand, for materials that have low
A Raman spectrometer is composed of light source, monochromator, sample holder and detector. The factors which affect the analysis on Raman spectra may include high signal-to-noise
Based on the frequency and time domain characters of heat radiation, high temperature Raman spectroscopy techniques were aralyzed and summarized. Thereby, two high temperature Raman
However, its operation in harsh conditions can significantly affect the reliability and stability of the entire communication system. While much of existing research focuses on performance analysis under
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