Periodic Reporting for period 4 - UPTIME (Real-TIME probing of Ultrafast Phenomena)
Reporting period: 2020-02-01 to 2022-12-31
The perception of the world surrounding us depends on how we illuminate and capture it. For example, our direct observation of high-speed phenomena is limited by the speed of the human visual system. A well known method to visualize fast events is to capture them at very high frame rates with high-speed cameras, and then play the movie in slow-motion, enabling us to understand what happens at short timescales.
The ultimate goal of this project is to develop the fastest camera on earth, able not only to visualize the changing morphology and position of an object under investigation, but also to simultaneously capture in depth spectroscopic information in both temporal and spectral domains – all of these at unprecedented speeds, several orders of magnitude faster than the current state of the art.
For the first time, this will enable the simultaneous high-speed visualization and the spatio-spectro-temporal investigation of dynamic phenomena, at timescales never before accessible. This will enable us to gain unique insights into very fast transformations and irreversible phenomena in physics, biology and engineering.
The unique insights which UPTIME will allow into the processes at work in fast irreversible processes such as – for example - chemical reactions, phase transitions or laser ablation will enable the generation of new knowledge that can then be exploited towards the optimization and/or development of new processes, with a profound technological and economic significance.
With UPTIME, we were able to demonstrate high-speed ultrafast optical sampling systems with adjustable scan range and scan rate. To put its high-speed capability into perspective, let’s consider that in order to achieve the same performance with a mechanical translation stage, this stage would need to move at a speed of 140 km/s, corresponding to 0.05% of the speed of light! This equivalent performance is orders of magnitude higher than previous similar methods.
The ultimate goal of this project is to develop the fastest camera on earth, able not only to visualize the changing morphology and position of an object under investigation, but also to simultaneously capture in depth spectroscopic information in both temporal and spectral domains – all of these at unprecedented speeds, several orders of magnitude faster than the current state of the art.
For the first time, this will enable the simultaneous high-speed visualization and the spatio-spectro-temporal investigation of dynamic phenomena, at timescales never before accessible. This will enable us to gain unique insights into very fast transformations and irreversible phenomena in physics, biology and engineering.
The unique insights which UPTIME will allow into the processes at work in fast irreversible processes such as – for example - chemical reactions, phase transitions or laser ablation will enable the generation of new knowledge that can then be exploited towards the optimization and/or development of new processes, with a profound technological and economic significance.
With UPTIME, we were able to demonstrate high-speed ultrafast optical sampling systems with adjustable scan range and scan rate. To put its high-speed capability into perspective, let’s consider that in order to achieve the same performance with a mechanical translation stage, this stage would need to move at a speed of 140 km/s, corresponding to 0.05% of the speed of light! This equivalent performance is orders of magnitude higher than previous similar methods.
We invented several approaches to high-speed optical sampling using compact ultrafast laser diodes. The most promising and very recent approach enabled a low-noise, seamless and fully electronic sweep of the rate at which pulses were generated by the laser. With this approach, we achieved several world records, with the broadest and fastest continuous tunability range of the pulse repetition rate achieved from this type of laser. This enabled a new type of high-speed optical sampling, with adjustable scan range and scan rate - Optical-Injection driven Optical Sampling by Cavity Tuning.
We now want to build on and exploit UPTIME’s results. We have ongoing exploitation projects to engage with industrial end-users and demonstrate how to gain unique glimpses of processes at very high speeds – which could be of particular relevance in manufacturing. Such high-speed measurement tools could transform the way that manufacturing processes take place and help make them more efficient.
We now want to build on and exploit UPTIME’s results. We have ongoing exploitation projects to engage with industrial end-users and demonstrate how to gain unique glimpses of processes at very high speeds – which could be of particular relevance in manufacturing. Such high-speed measurement tools could transform the way that manufacturing processes take place and help make them more efficient.
With UPTIME, we were able to demonstrate high-speed ultrafast optical sampling systems with adjustable scan range and scan rate. To put its high-speed capability into perspective, let’s consider that in order to achieve the same performance with a mechanical translation stage, this stage would need to move at a speed of 140 km/s, corresponding to 0.05% of the speed of light! This equivalent performance is orders of magnitude higher than previous similar methods.