Mallika Suresh

Mallika Suresh

Lead, Photonics
University of Otago
Mallika Suresh (Mika) is a Research Fellow at the Physics Department of the University of Otago and the Photonics Lead of Tuwhiri. For the last 5 years, her research has been focused on electro-optic nonlinear mixing of terahertz signals with optical modes in whispering gallery mode resonators. Before that, during her PhD, Mika worked with femtosecond pulses in gas-filled hollow-core fibres under the supervision of Prof. Philip Russell and Dr. Francesco Tani at the Max Planck Institute for the Science of Light. Soon after joining Harald’s team, she supervised the setting up of a femtosecond laser ablation system at the Physics Department for (among other applications) the fabrication of dielectric whispering gallery mode resonators for nonlinear optical experiments. She was the Agnes-Blackie Research Fellow of Te Whai Ao – Dodd-Walls Centre for Photonic and Quantum Technologies in 2024 – 2026 and now is an Associate Investigator in Te Whai Ao. Mika is also leading collaborations with international experts in the field of terahertz photonics such as Prof. Withawat Withayachumnankul at the University of Adelaide and Prof. Ileana-Cristina Benea-Chelmus at École Polytechnique Fédérale de Lausanne as part of the Tuwhiri programme.
Catalyst: Seeding award to build a partnership with NASA JPL featured image

Catalyst: Seeding award to build a partnership with NASA JPL

A two-year Catalyst: Seeding project pairs Tuwhiri's photonic sensor with a flight-proven JPL microwave spectrometer, aimed at measuring stratospheric water vapour.

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Harald G. L. Schwefel

Millimeter-Wave Atmospheric Radiometry via Nonlinear Optical Upconversion

The monitoring of the Earth’s atmospheric composition requires very sensitive satellite-based measurements that detect the thermal radiation emitted in the millimeter-wave and …

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Florian Sedlmeir

Visualization and selective manipulation of sub-terahertz whispering gallery modes

The development of technologies based on electromagnetic resonant structures usually relies on precise understanding of the spatial form of the supported modes. In millimeter-sized …

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Dodd-Walls Centre annual symposium featured image

Dodd-Walls Centre annual symposium

Mallika Suresh represented the Tuwhiri photonics team at the Centre's annual gathering of New Zealand's photonics and quantum technology community.

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Mallika Suresh

Multichannel upconversion of terahertz radiation in an optical disk resonator

Second-order nonlinear optical processes allow the conversion of electromagnetic signals to a higher frequency domain. Such so-called "upconversion" processes have been of interest …

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Mallika Suresh