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Heterodyne mixing of millimetre electromagnetic waves and sub-THz sound in a semiconductor device (2016)
Journal Article
Heywood, S. L., Glavin, B. A., Beardsley, R., Akimov, A. V., Carr, M. W., Norman, J., …Kent, A. J. (in press). Heterodyne mixing of millimetre electromagnetic waves and sub-THz sound in a semiconductor device. Scientific Reports, 6, Article 30396. https://doi.org/10.1038/srep30396

We demonstrate heterodyne mixing of a 94 GHz millimetre wave photonic signal, supplied by a Gunn diode oscillator, with coherent acoustic waves of frequency ~ 100 GHz, generated by pulsed laser excitation of a semiconductor surface. The mixing takes... Read More about Heterodyne mixing of millimetre electromagnetic waves and sub-THz sound in a semiconductor device.

X-ray detection with zinc-blende (cubic) GaN Schottky diodes (2016)
Journal Article
Gohil, T., Whale, J., Lioliou, G., Novikov, S. V., Foxon, C., Kent, A., & Barnett, A. (2016). X-ray detection with zinc-blende (cubic) GaN Schottky diodes. Scientific Reports, 6, Article 29535. https://doi.org/10.1038/srep29535

The room temperature X-ray responses as functions of time of two n type cubic GaN Schottky diodes (200 μm and 400 μm diameters) are reported. The current densities as functions of time for both diodes showed fast turn-on transients and increases in c... Read More about X-ray detection with zinc-blende (cubic) GaN Schottky diodes.

Nanomechanical probing of the layer/substrate interface of an exfoliated InSe sheet on sapphire (2016)
Journal Article
Beardsley, R., Akimov, A. V., Greener, J. D., Mudd, G. W., Sandeep, S., Kudrynskyi, Z. R., …Kent, A. J. (2016). Nanomechanical probing of the layer/substrate interface of an exfoliated InSe sheet on sapphire. Scientific Reports, 6, https://doi.org/10.1038/srep26970

Van der Waals (vdW) layered crystals and heterostructures have attracted substantial interest for potential applications in a wide range of emerging technologies. An important, but often overlooked, consideration in the development of implementable d... Read More about Nanomechanical probing of the layer/substrate interface of an exfoliated InSe sheet on sapphire.