News
Highlighted as an Editor’s Pick
Our open-access paper entitled "THz-TDS with gigahertz Yb-based dual-comb lasers: noise analysis and mitigation strategies", published in Applied Optics, has been highlighted as an Editor's Pick.
Top Female Scientists for 2023
Ursula Keller is ranked 4 in Switzerland among Top Female Scientists for 2023
Toxic workplaces drive women away from STEM fields
Prof. Keller is increasingly concerned about “hostility” towards excellent women in leadership positions in STEMM (i.e. science, technology, engineering, mathematics and medicine) fields, which she sees as a key challenge for further progress in gender diversity. In this news item Prof. Keller summarizes her talk given first at CLEO USA 2023 as a plenary talk and more recently at an IEEE meeting in Italy.
Highlighted as an Editor’s Pick
Our manuscript “Ultrafast Yb:YAG laser oscillator with gigahertz repetition rate” has been selected as the Editor’s Pick in Optics Express.
Plenary talk at CLEO US 2023
Prof. Ursula Keller gives a plenary talk at CLEO US 2023 on Diversity, Equity & Inclusion (DEI)
Electrons: collective or independent – that sometimes lies in the eye of the beholder
Absorption of light adds energy to a material. The electrons inside the material can react collectively or independently to that energy. Here, the dominant reaction pattern should not depend on perspective. However, in compound semiconductors, surprisingly, divergent responses are obtained depending on which atomic constituent is consulted. Knowledge of both perspectives is necessary to optimize new materials for applications in electronics and optoelectronics.
Highlighted as an Editor’s Pick
Our manuscript "Coherently averaged dual-comb spectroscopy with a low-noise and high-power free-running gigahertz dual-comb laser" has been selected as the Editor’s Pick in Optics Express.
Two new methods for multiplexing a single laser cavity to support a pair of low noise optical frequency combs
We have invented two new methods for multiplexing a single laser cavity to support a pair of noise-correlated, yet cavity length independent optical frequency combs.
Open the door to something better
Prof Ursula Keller on the challenges of being a woman in STEM – in Europe and abroad