Search NASA⌕ Search
Home/Archive/DOE OSTI

DOE OSTI · 22420177

Photonic E-field sensor

Savchenkov, A. A.·Liang, W.·Ilchenko, V. S.·Dale, E.·Savchenkova, E. A.·Seidel, D.·Maleki, L.
View original source ↗Export metadata ↓

Abstract

We report on both theoretical and experimental studies of a photonic implementation of the electric (E-) field sensor using a probe made with all-dielectric RF-transparent elements. The geometrical dimensions of the electric field probe can be smaller than the wavelength of the measured electromagnetic field in the material. Our theoretical calculations show that the sensor allows detecting electric fields in a broad frequency range (100 Hz-20 GHz) with sensitivity better than 1 μV/[Hz{sup 1/2} m]. We demonstrate the sensor operating at X-band and validate the theoretical predictions.

Explore related subjects

36 MATERIALS SCIENCEDIELECTRIC MATERIALSELECTRIC FIELDSELECTROMAGNETIC FIELDSFORECASTINGGHZ RANGEIMPLEMENTATIONSENSITIVITYSENSORSWAVELENGTHS

Keep this discovery

Explore connections, maps & timelines

BibTeXRIS

Savchenkov, A. A., Liang, W., Ilchenko, V. S., Dale, E., Savchenkova, E. A., Seidel, D., Maleki, L.. 2014-12-15. Photonic E-field sensor. https://doi.org/10.1063/1.4902895

Cite the original work for its findings. Save a collection to share your selection of sources.

KEEP EXPLORING

Related reports

DOE OSTI2026

Cyclic moisture reactivation of calcium sorbents for long duration thermochemical energy storage

The transition to a flexible and reliable energy infrastructure, using electro-thermal energy generation technologies such as geothermal, concentrated solar power, and nuclear, usually demands simultaneous advancement of thermal energy storage (TES) to support on-demand electricity generation and industrial applications while mitigating the inherent intermittency of renewable energy sources and power outages from direct energy generation. Among TES technologies, thermochemical energy storage (TCES) based on calcium looping emerges as a compelling high-power energy storage candidate due to its high reaction enthalpy, compatibility with elevated operating temperatures, and abundance of low-cost materials. However, the long-term durability of calcium-based sorbents for TCES is hindered by surface sintering and particle aggregation, leading to performance degradation over repeated thermal cycles. This study explores a moisture hydration-based strategy to regenerate a degraded calcium sorbent and mitigate performance degradation for long duration TCES. The addition of moisture transforms calcium oxide into calcium hydroxide and produces intercalation water layers, associated with a regenerated surface area and reduced calcium oxide crystallite size. Both these effects are beneficial in restoring the sorbents' reactivity for carbonization. Additionally, an optimized hydration-assisted reactivation protocol balances the recovered energy storage capacity with heating penalty required for moisture removal from hydrated samples, resulting in an enhanced energy storage capacity up to 176% compared to benchmark sorbents that undergo cycling without reactivation after 60 cycles. In conclusion, these results highlight the potential of hydration-assisted reactivation to enhance the long-term performance of TCES, providing an effective pathway to advancing electro-thermal storage technologies.

36 MATERIALS SCIENCE↗