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Free-space material characterisation at terahertz frequencies using a vector network analyser (2015)
Conference Proceeding
Hammler, J., Gallant, A., & Balocco, C. (2015). Free-space material characterisation at terahertz frequencies using a vector network analyser. . https://doi.org/10.1109/ursi-at-rasc.2015.7302827

While dielectric properties of many materials have been extensively characterised at low frequencies and into the microwave region of the electromagnetic spectrum, published information is much sparser in the THz region. Knowledge of permittivity is... Read More about Free-space material characterisation at terahertz frequencies using a vector network analyser.

Design and performance of micro-rectenna arrays for thermal energy harvesting. (2015)
Conference Proceeding
Pan, Y., Rosamond, M., McDonald, A., Partridge, T., Cartwright, D., Linfield, E., …Balocco, C. (2015). Design and performance of micro-rectenna arrays for thermal energy harvesting. In 2015 40th International Conference on Infrared, Millimeter, and Terahertz waves (IRMMW-THz) (1-2). https://doi.org/10.1109/irmmw-thz.2015.7327724

We report on the design and performance of a micro-rectenna device for harvesting wasted thermal energy. As an individual rectenna exhibits low efficiency and output power, we designed and studied a focal plane array (FPA) on a single semiconductor c... Read More about Design and performance of micro-rectenna arrays for thermal energy harvesting..

Impedance matching at THz frequencies: Optimizing power transfer in rectennas. (2015)
Conference Proceeding
Etor, D., Dodd, L., Wood, D., & Balocco, C. (2015). Impedance matching at THz frequencies: Optimizing power transfer in rectennas. In 2015 40th International Conference on Infrared, Millimeter, and Terahertz waves (IRMMW-THz), Hong Kong, 2015. https://doi.org/10.1109/irmmw-thz.2015.7327776

A simple and elegant method for matching the impedance of a typical THz self-complementary bowtie antenna to the high-impedance of a nanodiode is proposed. Two twin-lead balanced lines emerging from the antenna feed-point are used to connect the diod... Read More about Impedance matching at THz frequencies: Optimizing power transfer in rectennas..

High-frequency metal-insulator-metal (MIM) diodes for thermal radiation harvesting. (2015)
Conference Proceeding
Etor, D., Dodd, L., Wood., D., & Balocco, C. (2015). High-frequency metal-insulator-metal (MIM) diodes for thermal radiation harvesting. In 40th International Conference on Infrared, Millimeter, and Terahertz waves (IRMMW-THz), Hong Kong, 2015. https://doi.org/10.1109/irmmw-thz.2015.7327649

The fabrication of low-cost metal-insulator-metal (MIM) diodes using a self-assembled monolayer as the insulating layer is presented. DC and AC analysis show that the diodes have excellent non-linear current voltage characteristics compared to those... Read More about High-frequency metal-insulator-metal (MIM) diodes for thermal radiation harvesting..

Effect of Wood’s Anomalies on the THz Transmission Spectra of Free- Standing Metallic Hole Arrays (2015)
Conference Proceeding
Hill, C., Klein, A., Balocco, C., Wood, D., & Gallant, A. (2015). Effect of Wood’s Anomalies on the THz Transmission Spectra of Free- Standing Metallic Hole Arrays. In 2015 40th International Conference on Infrared, Millimeter, and Terahertz waves (IRMMW-THz), Hong Kong, 2015. https://doi.org/10.1109/irmmw-thz.2015.7327803

A free-standing periodic array of subwavelength rectangular apertures has been designed to exhibit peak transmission which is dominated by localized aperture resonance in the THz region. By varying the incident angle, Wood's anomalies can be introduc... Read More about Effect of Wood’s Anomalies on the THz Transmission Spectra of Free- Standing Metallic Hole Arrays.

Design and performance of a micro-rectenna focal plane array for thermal energy harvesting. (2015)
Conference Proceeding
Balocco, C., Pan, Y., Rosamond, M., & Linfield, E. (2015). Design and performance of a micro-rectenna focal plane array for thermal energy harvesting. In 2015 1st URSI Atlantic Radio Science Conference (URSI AT-RASC 2015) Proceedings of a meeting held 16-24 May 2015, Gran Canaria, Spain (1-1). https://doi.org/10.1109/ursi-at-rasc.2015.7302974

In this paper, we present the design and experimental implementation of a thermal energy harvesting device. Each energy-harvesting unit cell functions as an individual micro-rectenna and, collectively, as a focal plane array (FPA). The FPA is fabrica... Read More about Design and performance of a micro-rectenna focal plane array for thermal energy harvesting..

Novel low-cost ultra-high-speed diodes for electromagnetic energy harvesting (2015)
Conference Proceeding
Etor, D., Dodd, L., Wood, D., & Balocco, C. (2015). Novel low-cost ultra-high-speed diodes for electromagnetic energy harvesting. In 2015 1st URSI Atlantic Radio Science Conference (URSI AT-RASC 2015) Proceedings of a meeting held 16-24 May 2015, Gran Canaria, Spain (1-1). https://doi.org/10.1109/ursi-at-rasc.2015.7302973

This work presents the fabrication of novel high-frequency low-cost metal-insulator-metal (MIM) diodes with the dielectric (insulating) layer formed using a chemical approach at low temperature, rather than using the more aggressive techniques typica... Read More about Novel low-cost ultra-high-speed diodes for electromagnetic energy harvesting.

3D polymer structures with variable permittivity at terahertz frequencies (2015)
Conference Proceeding
Hammler, J., Pan, Y., Gallant, A., & Balocco, C. (2015). 3D polymer structures with variable permittivity at terahertz frequencies. In 40th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz), 23-28 August 2015, Hong Kong (1-2). https://doi.org/10.1109/irmmw-thz.2015.7327458

Titanium dioxide (TiO2) powder has been blended with polydimethylsiloxane (PDMS) to manufacture a composite polymer with variable permittivity. Vector network analyser measurements taken between 0.75-1.1 THz quantify the relationship between TiO2 con... Read More about 3D polymer structures with variable permittivity at terahertz frequencies.

Simple de-embedding and simulation technique to find permittivity with a THz vector network analyser (2015)
Conference Proceeding
Hammler, J., Gallant, A., & Balocco, C. (2015). Simple de-embedding and simulation technique to find permittivity with a THz vector network analyser. In 40th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz), 23-28 August 2015, Hong Kong (1-2). https://doi.org/10.1109/irmmw-thz.2015.7327822

A simple and fast method for measuring the dielectric constant with a THz vector network analyser (VNA) has been developed. A numeric de-embedding technique removes free-space propagation effects, then simulation of Maxwell's equations simultaneously... Read More about Simple de-embedding and simulation technique to find permittivity with a THz vector network analyser.

Free standing metal aperture array acting as a variable bandpass filter in the THz region (2015)
Conference Proceeding
Hill, C., Balocco, C., Wood, D., & Gallant, A. (2015). Free standing metal aperture array acting as a variable bandpass filter in the THz region. In 2015 1st URSI Atlantic Radio Science Conference (URSI AT-RASC 2015) Proceedings of a meeting held 16-24 May 2015, Gran Canaria, Spain (1-1). https://doi.org/10.1109/ursi-at-rasc.2015.7302883

This work reports on the extraordinary THz transmission properties of shape optimized metallic subwavelength aperture arrays, and its dependence upon incident beam angle. The resonant frequency of the aperture array has been shown to vary between 0.8... Read More about Free standing metal aperture array acting as a variable bandpass filter in the THz region.