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Full-Text Articles in Physical Sciences and Mathematics
Pulsed Fiber Optics Lasers As Highly Sensitive Sensors, Hanieh Afkhamiardakani
Pulsed Fiber Optics Lasers As Highly Sensitive Sensors, Hanieh Afkhamiardakani
Shared Knowledge Conference
An interferometer or resonator is a device in which optical beams of specific frequencies circulate with minimal losses. These losses are completely compensated by the gain inside a laser resonator. A small perturbation introduced inside the laser can affect its frequency, which in turns becomes a metric of that perturbation. The perturbation is usually caused by an electric or magnetic field, rotation, acceleration, nonlinear index of refraction etc. Tiny changes of optical frequency are monitored by superimposing the laser field and a reference field (from the same laser) on a detector. This technique requires creating a laser in which two …
Quantitative Validation Of Simulated Sea Ice Displacements, Bryan R. Mccormick
Quantitative Validation Of Simulated Sea Ice Displacements, Bryan R. Mccormick
Mathematics & Statistics ETDs
Accurate simulations of Arctic sea ice are important for forecasting as well as for understanding the global climate. However, quantitative measures for simulation displacements are underutilized. We present five such measures proposed as being useful in the validation of simulated sea ice displacements. Using drifting buoy and satellite measurements of sea ice motion as observation, we apply the metrics in a comparison of observed displacements and predicted displacements from the Arctic sea ice simulation MPM\_ice. We find the metric scores are useful for comparing simulations and observations. The metrics also brought to light problems in the simulation MPM_ice, demonstrating their …