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All Outputs (102)

A robust, fine pitch probe card (2009)
Journal Article
Rosamond, M., Gallant, A., & Wood, D. (2009). A robust, fine pitch probe card. Procedia chemistry, 1(1), 792-795. https://doi.org/10.1016/j.proche.2009.07.197

A new type of probe card is described which consists of inclined nickel cantilevers formed on top of a three dimensional PDMS layer. A prototype card has been built with an in-line pitch of 23 μm. The presence of a PDMS layer beneath the cantilevers... Read More about A robust, fine pitch probe card.

Porous PDMS force sensitive resistors (2009)
Journal Article
King, M., Baragwanath, A., Rosamond, M., Wood, D., & Gallant, A. (2009). Porous PDMS force sensitive resistors. Procedia chemistry, 1(1), 568-571. https://doi.org/10.1016/j.proche.2009.07.142

Here we present an elastomeric force sensitive resistor (FSR) made from a porous matrix of polydimethylsiloxane (PDMS) filled with carbon black. The fabrication process is based on the use of a low cost sacrificial sugar cube scaffold which leads to... Read More about Porous PDMS force sensitive resistors.

Design and Optimisation of a Microgripper: Demonstration of Biomedical Applications Using the Manipulation of Oocytes (2009)
Presentation / Conference Contribution
Solano, B., Gallant, A., & Wood, D. (2009, May). Design and Optimisation of a Microgripper: Demonstration of Biomedical Applications Using the Manipulation of Oocytes. Presented at DTIP 2009: SYMPOSIUM ON DESIGN, TEST, INTEGRATION AND PACKAGING OF MEMS/MOEMS, Rome, Italy

We present a bidirectional electrothermal microgripper for the advanced manipulation of single large cells. The device demonstrates excellent performance, and shows great potential as a supporting microtool for different biomedical procedures such as... Read More about Design and Optimisation of a Microgripper: Demonstration of Biomedical Applications Using the Manipulation of Oocytes.

Contrast and resolution enhancement in a confocal terahertz video system. (2008)
Journal Article
Zinov’ev, N., Adrianov, A., Gallant, A., Chamberlain, J., & Trukhin, V. (2008). Contrast and resolution enhancement in a confocal terahertz video system. JETP Letters, 88(8), 492-495. https://doi.org/10.1134/s0021364008200058

The effect of image contrast enhancement without the loss of the spectral composition of the radiation under investigation has been experimentally demonstrated for a terahertz far-field video system. The result has been obtained by using a confocal a... Read More about Contrast and resolution enhancement in a confocal terahertz video system..

Negative refracting materials at THz frequencies. (2008)
Presentation / Conference Contribution
Swift, G. P., Gallant, A. J., Dai, D., Kaliteevski, M. A., Brand, S., Zeze, D. A., Wood, D., Petty, M. C., Abram, R. A., & Chamberlain, J. M. (2008, December). Negative refracting materials at THz frequencies. Presented at 33rd International Conference on Infrared, Millimeter, and Terahertz Waves, Pasadena, CA

We demonstrate here, for the first time, the construction of artificial materials, which theoretically possess two separate pass-bands utilizing the difference between positive and negative refraction in the terahertz frequency regime. Experimental t... Read More about Negative refracting materials at THz frequencies..

Micromachined Terahertz Waveguides with Embedded Metal Rods (2008)
Presentation / Conference Contribution
Gallant, A., Baragwanath, A., Swift, P., Wood, D., & Chamberlain, M. (2008, December). Micromachined Terahertz Waveguides with Embedded Metal Rods. Presented at 33rd International Conference on Infrared, Millimeter, and Terahertz Waves, Pasadena, CA

In this paper we report on a novel fabrication approach for the manufacture of terahertz waveguides with embedded metal rods. It is anticipated that this type of structure could be used for sub-wavelength imaging or as a method to effectively couple... Read More about Micromachined Terahertz Waveguides with Embedded Metal Rods.

Negative refraction can make non-diffracting beams (2008)
Journal Article
Kaliteevski, A., Brand, S., Abram, R., Gallant, A., & Chamberlain, J. (2008). Negative refraction can make non-diffracting beams. Optics Express, 16(19), 14582-14587. https://doi.org/10.1364/oe.16.014582

We report the results of simulations relating to the illumination of a structure consisting of a slab constructed from a 2-D hexagonal array of metal rods with a terahertz frequency source. As a consequence of negative refraction an essentially non-d... Read More about Negative refraction can make non-diffracting beams.

Flexible polymer based artificial materials for terahertz applications. (2007)
Presentation / Conference Contribution
Gallant, A., Zeze, D., Wood, D., Petty, M., Dai, D., & Chamberlain, J. (2007, December). Flexible polymer based artificial materials for terahertz applications. Presented at Joint 32nd International Conference on Infrared and Millimeter Waves, 2007 and the 2007 15th International Conference on Terahertz Electronics. IRMMW-THz., Cardiff, Wales

In this paper we report on the fabrication and testing of arrays of subwavelength apertures which are formed in a highly flexible polymer, PDMS (polydimethylsiloxane). PDMS can be elastically stretched to cause the deformation of any surface features... Read More about Flexible polymer based artificial materials for terahertz applications..

Micromachining for Terahertz Artificial Materials. (2007)
Presentation / Conference Contribution
Gallant, A., Swift, G., Dai, D., Kaliteevski, M., Zeze, D., Wood, D., Petty, M., Brand, S., Abram, R., & Chamberlain, J. (2007, December). Micromachining for Terahertz Artificial Materials. Presented at Materials Research Society Spring Meeting, San Francisco, CA, USA

Passband filters for terahertz radiation based on dual metallic photonic structures (2007)
Journal Article
Gallant, A., Kaliteevski, M., Wood, D., Petty, M., Abram, R., Brand, S., …Chamberlain, J. (2007). Passband filters for terahertz radiation based on dual metallic photonic structures. Applied Physics Letters, 91(16), https://doi.org/10.1063/1.2800381

This paper reports on the development of two-dimensional metallic microstructures for the filtering of terahertz radiation. These structures are fabricated using ultraviolet-based processing of thick SU8 resist. This micromachining technique enables... Read More about Passband filters for terahertz radiation based on dual metallic photonic structures.

Terahertz Frequency Bandpass Filters (2007)
Journal Article
Gallant, A., Kaliteevski, M., Brand, S., Wood, D., Petty, M., Abram, R., & Chamberlain, J. (2007). Terahertz Frequency Bandpass Filters. Journal of Applied Physics, 102(2), https://doi.org/10.1063/1.2756072

The design, measurement, and analysis of a range of artificial materials for use at terahertz frequencies are described. The chosen structures consist of arrays of cylindrical gold-plated pillars with period comparable to the wavelength of incident r... Read More about Terahertz Frequency Bandpass Filters.

Artificial plasmonic materials for THz applications (2007)
Presentation / Conference Contribution
Gallant, A., Levitt, J., Kaliteevski, M., Wood, D., Petty, M., Abram, R., Brand, S., Swift, G., Zeze, D., & Chamberlain, J. (2007, February). Artificial plasmonic materials for THz applications. Presented at Terahertz and Gigahertz Electronics and Photonics VI, San Jose, CA

This paper reports on the development of micromachined pillar arrays for the filtering of terahertz radiation. These pillar arrays are fabricated using ultraviolet based processing of thick SU8. This micromachining technique enables the array pattern... Read More about Artificial plasmonic materials for THz applications.

The Fabrication of High Aspect Ratio THz Metamaterials (2006)
Presentation / Conference Contribution
Gallant, A., Wood, D., Levitt, J., Kaliteevski, M., Petty, M., Brand, S., Abram, R., & Chamberlain, J. (2006, December). The Fabrication of High Aspect Ratio THz Metamaterials. Presented at Seminar on Metamaterials for Microwave and (Sub) Millimetrewave Applications: Electromagnetic Bandgap and Double Negative Design, Structures, Devices and Experimental Validation, 2006. The Institution of Engineering and Technology, London

Surface micromachined membranes for wafer level packaging (2005)
Journal Article
Gallant, A., & Wood, D. (2005). Surface micromachined membranes for wafer level packaging. Journal of Micromechanics and Microengineering, 15(7), S47-S52. https://doi.org/10.1088/0960-1317/15/7/007

Novel surface micromachined membranes have been developed for wafer level packaging and polymer encapsulation. Laterally unconstrained electroforming allows small etch holes to be included in thick membranes whilst only requiring a thin, low stress,... Read More about Surface micromachined membranes for wafer level packaging.

The role of fabrication techniques on the performance of widely tunable micromachined capacitors (2004)
Journal Article
Gallant, A., & Wood, D. (2004). The role of fabrication techniques on the performance of widely tunable micromachined capacitors. Sensors and Actuators A: Physical, 110(1-3), 423-431. https://doi.org/10.1016/j.sna.2003.07.006

Coventorware 2001.1® is used to identify key vertical dimensions for the low voltage operation of a two-gap widely tunable capacitor. Using identical masking stages, two varieties of tunable capacitor are presented. Nickel structures are demonstrated... Read More about The role of fabrication techniques on the performance of widely tunable micromachined capacitors.