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Near infrared integrated photonic switches for portable quantum sensors (2021)
Journal Article
Saleeb-Mousa, B., Moss, J. L., Maclean, J. O., Campion, R. P., & Mellor, C. J. (2021). Near infrared integrated photonic switches for portable quantum sensors. Journal of Physics: Conference Series, 1919(1), 1-8. https://doi.org/10.1088/1742-6596/1919/1/012007

A novel integrated semiconductor photonic switch, based on carrier-induced refractive index changes, has been designed and fabricated for use at near infrared wavelengths (890-920 nm, 750-780 nm and 745-775 nm). These switches are intended for use in... Read More about Near infrared integrated photonic switches for portable quantum sensors.

Laser drilling of micro-holes in single crystal silicon, indium phosphide and indium antimonide using a continuous wave (CW) 1070 nm fibre laser with millisecond pulse widths (2018)
Journal Article
Maclean, J. O., Tangkijcharoenchai, C., Coomber, S., & Voisey, K. T. (2018). Laser drilling of micro-holes in single crystal silicon, indium phosphide and indium antimonide using a continuous wave (CW) 1070 nm fibre laser with millisecond pulse widths. Procedia CIRP, 74, 407-412. https://doi.org/10.1016/j.procir.2018.08.158

The laser micro-drilling of “thru” holes, also known as via holes, in Si, InP and InSb semiconductor wafers was studied using millisecond pulse lengths from an IPG Laser Model YLR-2000 CW multimode 2 kW Ytterbium Fibre Laser and a JK400 (400 W) fibre... Read More about Laser drilling of micro-holes in single crystal silicon, indium phosphide and indium antimonide using a continuous wave (CW) 1070 nm fibre laser with millisecond pulse widths.

Laser drilling of microholes in single crystal silicon using continuous wave (CW) 1070 nm fiber lasers with millisecond pulse widths (2018)
Journal Article
Maclean, J. O., Hodson, J., Tangkijcharoenchai, C., Al-Ojaili, S., Rodsavas, S., Coomber, S., & Voisey, K. (2018). Laser drilling of microholes in single crystal silicon using continuous wave (CW) 1070 nm fiber lasers with millisecond pulse widths. Lasers in Engineering, 39(1-2),

The laser microdrilling of via holes in Si semiconductor wafers was studied using 1 ms pulses from an Yb fibre laser with 1070 nm wavelength. Optical microscopy and cross‑sectional analysis were used to quantify hole dimensions, the distribution of r... Read More about Laser drilling of microholes in single crystal silicon using continuous wave (CW) 1070 nm fiber lasers with millisecond pulse widths.

The UK National Quantum Technologies Hub in sensors and metrology (Keynote Paper) (2016)
Journal Article
Bongs, K., Boyer, V., Cruise, M., Freise, A., Holynski, M., Hughes, J., …John, P. (2016). The UK National Quantum Technologies Hub in sensors and metrology (Keynote Paper). Proceedings of SPIE, 9900, Article 990009. https://doi.org/10.1117/12.2232143

The UK National Quantum Technology Hub in Sensors and Metrology is one of four flagship initiatives in the UK National of Quantum Technology Program. As part of a 20-year vision it translates laboratory demonstrations to deployable practical devices,... Read More about The UK National Quantum Technologies Hub in sensors and metrology (Keynote Paper).

Laser drilling of via micro-holes in single-crystal semiconductor substrates using a 1070nm fibre laser with millisecond pulse widths (2015)
Journal Article
Maclean, J. O., Hodson, J. R., & Voisey, K. T. (2015). Laser drilling of via micro-holes in single-crystal semiconductor substrates using a 1070nm fibre laser with millisecond pulse widths. Proceedings of SPIE, 9657, Article 965704. https://doi.org/10.1117/12.2175898

© 2015 SPIE. Micro-machining of semiconductors is relevant to fabrication challenges within the semiconductor industry. For via holes for solar cells, laser drilling potentially avoids deep plasma etching which requires sophisticated equipment and co... Read More about Laser drilling of via micro-holes in single-crystal semiconductor substrates using a 1070nm fibre laser with millisecond pulse widths.

iSense: a technology platform for cold atom based quantum technologies (2014)
Conference Proceeding
Bongs, K., Malcolm, J., Ramelloo, C., Zhu, L., Boyer, V., Valenzuela, T., …Wicht, A. (2014). iSense: a technology platform for cold atom based quantum technologies. In Research in Optical Sciences. https://doi.org/10.1364/QIM.2014.QTu3B.1

A breakthrough in cold atom quantum technology is hindered by a bottleneck in the supporting technologies. We discuss a cold atom technology platform developed within the European iSense project, aiming at a gravimeter as demonstrator.

III-V semiconductor waveguides for photonic functionality at 780 nm (2014)
Journal Article
Maclean, J. O., Greenaway, M. T., Campion, R. P., Pyragius, T., Fromhold, T. M., Kent, A. J., & Mellor, C. J. (2014). III-V semiconductor waveguides for photonic functionality at 780 nm. Proceedings of SPIE, 8988, Article 898805. https://doi.org/10.1117/12.2039898

Photonic integrated circuits based on III-V semiconductor polarization-maintaining waveguides were designed and fabricated for the first time for application in a compact cold-atom gravimeter1,2 at an operational wavelength of 780 nm. Compared with o... Read More about III-V semiconductor waveguides for photonic functionality at 780 nm.