Search Results - "Murray, Joseph B."

Dynamic Optical Properties of Metal Hydrides by Palm, Kevin J, Murray, Joseph B, Narayan, Tarun C, Munday, Jeremy N

“…Metal hydrides often display dramatic changes in optical properties upon hydrogenation. These shifts make them prime candidates for many tunable optical…”
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Frequency multiplexed coherent φ-OTDR by Ogden, Hannah M., Murray, Matthew J., Murray, Joseph B., Kirkendall, Clay, Redding, Brandon

“…We present a comprehensive analysis of a frequency multiplexed phase-measuring φ-OTDR sensor platform. The system uses a train of frequency-shifted pulses to…”
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High-speed broadband absorption spectroscopy enabled by cascaded frequency shifting loops by Ogden, Hannah M., Murray, Joseph B., Murray, Matthew J., Redding, Brandon

“…Frequency shifting loops, consisting of a fiber optic ring cavity, a frequency modulator, and an amplifier to compensate for loss, enable high-speed frequency…”
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Impact of polarization pulling on optimal spectrometer design for stimulated Brillouin scattering microscopy by Rosvold, Jake R., Murray, Joseph B., Zanini, Giulia, Redding, Brandon, Scarcelli, Giuliano

“…Brillouin spectroscopy has become an important tool for mapping the mechanical properties of biological samples. Recently, stimulated Brillouin scattering…”
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Fiber optic computing using distributed feedback by Redding, Brandon, Murray, Joseph B., Hart, Joseph D., Zhu, Zheyuan, Pang, Shuo S., Sarma, Raktim

“…The widespread adoption of machine learning and other matrix intensive computing algorithms has renewed interest in analog optical computing, which has the…”
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Massively distributed fiber strain sensing using Brillouin lasing by Murray, Joseph B., Cerjan, Alexander, Redding, Brandon

“…Brillouin based distributed fiber sensors present a unique set of characteristics amongst fiber sensing architectures. They are able to measure absolute strain…”
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Suppressing non-local effects due to Doppler frequency shifts in dynamic Brillouin fiber sensors by Murray, Joseph B, Redding, Brandon

“…Brillouin fiber sensors have traditionally been limited to low-speed or static strain measurements due to the time-consuming frequency scans required. In the…”
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Dynamic temperature-strain discrimination using a hybrid distributed fiber sensor based on Brillouin and Rayleigh scattering by Murray, Matthew J, Murray, Joseph B, Ogden, Hannah M, Redding, Brandon

“…We present a distributed fiber sensor capable of discriminating between temperature and strain while performing low-noise, dynamic measurements. This was…”
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High-resolution wide-band optical frequency comb control using stimulated Brillouin scattering by Redding, Brandon, McKinney, Jason D., Schermer, Ross T., Murray, Joseph B.

“…We introduce a technique to manipulate an optical frequency comb on a line-by-line basis using stimulated Brillouin scattering (SBS). The narrow-linewidth SBS…”
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Slope-Assisted Brillouin Optical Wavemeter by Murray, Matthew J., Murray, Joseph B., Redding, Brandon

“…We introduce a slope-assisted Brillouin optical wavemeter. Existing Brillouin-based spectrum analyzers measure the Brillouin gain as the frequency of a pump…”
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High-speed RF spectral analysis using a Rayleigh backscattering speckle spectrometer by Murray, Matthew J, Murray, Joseph B, Schermer, Ross T, McKinney, Jason D, Redding, Brandon

“…Persistent wideband radio frequency (RF) surveillance and spectral analysis is increasingly important, driven by the proliferation of wireless communication…”
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Combining Stokes and anti-Stokes interactions to achieve ultra-low noise dynamic Brillouin strain sensing by Murray, Joseph B., Redding, Brandon

“…Brillouin based fiber sensors are susceptible to a range of technical and environmental noise sources that can degrade the sensor performance or introduce…”
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In Situ Optical and Stress Characterization of Alloyed PdxAu1-x Hydrides by Palm, Kevin J, Murray, Joseph B, McClure, Joshua P, Leite, Marina S, Munday, Jeremy N

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Brillouin laser spectrometer based on spectral compression by Murray, Joseph B., Murray, Matthew J., Redding, Brandon

“…We introduce a spectrometer design that uses Brillouin lasing to perform broadband spectral compression. This approach enables the entire C-band (optical…”
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In Situ Optical and Stress Characterization of Alloyed Pd x Au 1- x Hydrides by Palm, Kevin J, Murray, Joseph B, McClure, Joshua P, Leite, Marina S, Munday, Jeremy N

“…Pd Au alloys have recently shown great promise for next-generation optical hydrogen sensors due to their increased chemical durability while their optical…”
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Distributed Brillouin fiber laser sensor by Murray, Joseph B., Cerjan, Alex, Redding, Brandon

“…Brillouin fiber sensors can provide distributed strain and temperature measurements over long distances in standard off-the-shelf fiber by measuring the…”
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Experimental demonstration of light trapping and internal light scattering in solar cells by Murray, Joseph B

“…Renewable energy technologies have long-term economic and environmental advantages over fossil fuels, and solar power is the most abundant renewable resource,…”
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In Situ Optical and Stress Characterization of Alloyed Pd x Au1–x Hydrides by Palm, Kevin J, Murray, Joseph B, McClure, Joshua P, Leite, Marina S, Munday, Jeremy N

“…Pd x Au1–x alloys have recently shown great promise for next-generation optical hydrogen sensors due to their increased chemical durability while their optical…”
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Wideband RF Analysis with Rayleigh Backscattering by Murray, Matthew J., Murray, Joseph B., Schermer, Ross T., McKinney, Jason D., Redding, Brandon

“…We present an RF spectrum analyzer capable of monitoring a 15GHz band with MHz-level resolution and 385kHz update rate. We use Rayleigh-backscattering in…”
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Fiber optic computing using distributed feedback by Redding, Brandon, Murray, Joseph B, Hart, Joseph D, Zhu, Zheyuan, Pang, Shuo S, Sarma, Raktim

“…The widespread adoption of machine learning and other matrix intensive computing algorithms has inspired renewed interest in analog optical computing, which…”
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