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Genetic algorithms for the design of planar THz antenna (2022)
Journal Article
Fenlon, V., Cooke, M., Mayock, J., Gallant, A., & Balocco, C. (2022). Genetic algorithms for the design of planar THz antenna. Journal of Applied Physics, 132, https://doi.org/10.1063/5.0120128

This paper proposes a genetic algorithm for the design of passive components operating at THz frequencies and its experimental validation using an exemplar patch antenna. The patch antenna is based on an SU8 substrate, with a binary array describing... Read More about Genetic algorithms for the design of planar THz antenna.

Tilting micromirror platform based on liquid dielectrophoresis (2021)
Journal Article
Frozanpoor, I., Cooke, M., Alvarez-Ruiz, D., Ambukan, V., Gallant, A., & Balocco, C. (2021). Tilting micromirror platform based on liquid dielectrophoresis. Sensors and Actuators A: Physical, 332(2), Article 113177. https://doi.org/10.1016/j.sna.2021.113177

This study presents an electrically actuated tilting micro platform based on liquid dielectrophoresis with three axes movement using three droplets situated 120° apart from each other. The interdigitated electrodes produce a non-uniform electric fiel... Read More about Tilting micromirror platform based on liquid dielectrophoresis.

Continuous Droplet-Actuating Platforms via an Electric Field Gradient: Electrowetting and Liquid Dielectrophoresis (2021)
Journal Article
Frozanpoor, I., Cooke, M. D., Ambukan, V., Gallant, A. J., & Balocco, C. (2021). Continuous Droplet-Actuating Platforms via an Electric Field Gradient: Electrowetting and Liquid Dielectrophoresis. Langmuir, 37(21), 6414-6422. https://doi.org/10.1021/acs.langmuir.1c00329

This work develops a technology for actuating droplets of any size without the requirement for high voltages or active control systems, which are typically found in competitive systems. The droplet actuation relies on two microelectrodes separated by... Read More about Continuous Droplet-Actuating Platforms via an Electric Field Gradient: Electrowetting and Liquid Dielectrophoresis.

Programmable droplet actuating platform using liquid dielectrophoresis (2021)
Journal Article
Frozanpoor, I., Cooke, M., Racz, Z., Bossons, I., Ambukan, V., Wood, D., Gallant, A., & Balocco, C. (2021). Programmable droplet actuating platform using liquid dielectrophoresis. Journal of Micromechanics and Microengineering, 31(5), https://doi.org/10.1088/1361-6439/abf032

Droplet motion has been a long-standing interest in microfluidics as it is often limited by the high operating voltages, which hampers the development of consumer applications. Forces generated by liquid dielectrophoresis (L-DEP) can enhance surface... Read More about Programmable droplet actuating platform using liquid dielectrophoresis.

Computer Aided Patterning Design for Self-Assembled Microsphere Lithography (SA-MSL) (2019)
Journal Article
Lees, R., Cooke, M., Balocco, C., & Gallant, A. (2019). Computer Aided Patterning Design for Self-Assembled Microsphere Lithography (SA-MSL). Scientific Reports, 9, Article 12849. https://doi.org/10.1038/s41598-019-48881-z

In this paper, we use a finite difference time domain solver to simulate the near field optical properties of self-assembled microsphere arrays when exposed to an incoherent light source. Such arrays are typically used for microsphere lithography whe... Read More about Computer Aided Patterning Design for Self-Assembled Microsphere Lithography (SA-MSL).

Metal-insulator-metal diodes based on alkyltrichlorosilane self-assembled monolayers (2019)
Journal Article
Jin, J., Wang, L., Zheng, Z., Zhang, J., Hu, X., Lu, J. R., Etor, D., Pearson, C., Song, A., Wood, D., Gallant, A. J., & Balocco, C. (2019). Metal-insulator-metal diodes based on alkyltrichlorosilane self-assembled monolayers. AIP Advances, 9(6), https://doi.org/10.1063/1.5100252

This paper reports on the experimental investigation of metal-insulator-metal (MIM) diodes based on alkyltrichlorosilane self-assembled monolayers (SAMs) with different alkyl chain lengths. The insulating SAM is sandwiched between two metal contacts,... Read More about Metal-insulator-metal diodes based on alkyltrichlorosilane self-assembled monolayers.

Photonic-Crystal Based Enhancement Of Terahertz Spectroscopy In Microfluidic Cells (2016)
Presentation / Conference Contribution
Klein, A. K., Hammler, J. M., Zeze, D., Balocco, C., & Gallant, A. J. (2016, December). Photonic-Crystal Based Enhancement Of Terahertz Spectroscopy In Microfluidic Cells. Presented at 2016 41st International Conference on Infrared, Millimeter, and Terahertz waves (IRMMW-THz), Copenhagen, Denmark

Free-Space Permittivity Measurement at Terahertz Frequencies with a Vector Network Analyser (2016)
Journal Article
Hammler, J., Gallant, A. J., & Balocco, C. (2016). Free-Space Permittivity Measurement at Terahertz Frequencies with a Vector Network Analyser. IEEE Transactions on Terahertz Science & Technology, 6(6), 817-823. https://doi.org/10.1109/tthz.2016.2609204

A simple system, based on a vector network analyzer, has been used with new numerical de-embedding and parameter inversion techniques to determine the relative permittivity (dielectric properties) of materials within the frequency range 750–1100 GHz.... Read More about Free-Space Permittivity Measurement at Terahertz Frequencies with a Vector Network Analyser.

Polymer-Based Micro-Golay Cells For THz Detection (2016)
Presentation / Conference Contribution
Stefanova, P., Hammler, J., Klein, A., Gallant, A., & Balocco, C. (2016, December). Polymer-Based Micro-Golay Cells For THz Detection. Presented at 2016 41st International Conference on Infrared, Millimeter, and Terahertz waves (IRMMW-THz), Copenhagen, Denmark

We report on the design, simulation and fabrication of polymer-composite micro-Golay cells for THz and far-infrared detection. Preliminary experimental results showed that the cell’s mechanical, thermal and optical properties make it an excellent can... Read More about Polymer-Based Micro-Golay Cells For THz Detection.

Microfabrication of SU-8 Fresnel lenses for THz imaging (2016)
Presentation / Conference Contribution
Hajji, M., Pan, Y., Hammler, J., Zeze, D., Balocco, C., & Gallant, A. (2016, December). Microfabrication of SU-8 Fresnel lenses for THz imaging. Presented at Terahertz, RF, Millimeter, and Submillimeter-Wave Technology and Applications IX, San Francisco, California, United States

Free-space material characterisation at terahertz frequencies using a vector network analyser (2015)
Presentation / Conference Contribution
Hammler, J., Gallant, A., & Balocco, C. (2015, December). Free-space material characterisation at terahertz frequencies using a vector network analyser. Presented at URSI AT-RASC 2015, Gran Canaria, Spain

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.

Effect of Wood’s Anomalies on the THz Transmission Spectra of Free- Standing Metallic Hole Arrays (2015)
Presentation / Conference Contribution
Hill, C., Klein, A., Balocco, C., Wood, D., & Gallant, A. (2015, December). Effect of Wood’s Anomalies on the THz Transmission Spectra of Free- Standing Metallic Hole Arrays. Presented at 2015 40th International Conference on Infrared, Millimeter, and Terahertz waves (IRMMW-THz), Hong Kong, China

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.

3D polymer structures with variable permittivity at terahertz frequencies (2015)
Presentation / Conference Contribution
Hammler, J., Pan, Y., Gallant, A., & Balocco, C. (2015, August). 3D polymer structures with variable permittivity at terahertz frequencies. Presented at 2015 40th International Conference on Infrared, Millimeter, and Terahertz waves (IRMMW-THz), Hong Kong, China

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)
Presentation / Conference Contribution
Hammler, J., Gallant, A., & Balocco, C. (2015, August). Simple de-embedding and simulation technique to find permittivity with a THz vector network analyser. Presented at 2015 40th International Conference on Infrared, Millimeter, and Terahertz waves (IRMMW-THz), Hong Kong, China

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.