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Automated loading of micro sized particles at ultrahigh vacuum
In many experiments, that levitate nanoparticles in vacuum, the loading mechanism needs ambient pressure. This hinders experiments at ultra high vacuum levels. This master thesis is aiming for the design, implementation and characterization of a loading mechanism based on piezo acuators and hollow core fibres in vacuum.
**Automated loading of micro sized particles at ultrahigh vacuum – A master project in the Nanophotonic Systems Laboratory (NSL)**
We are looking for a curious and motivated master student, who wants to join our young & international NSL group and solves with us one of the current limitations in levitated nanoparticles.
**Project background:**
In recent years, the dynamic field of Levitodynamics has made big advances towards the quantum world and real live applications. Many of those optomechanical experiments are conducted at ultrahigh vacuum conditions. Despite the recent advances in the field, these ultrahigh vacuum conditions still need to be broken on a daily basis, limiting the final reachable vacuum level and increasing the experimental cycle time.
In our experiments, we trap nanoparticles of various materials in optical and electrostatic traps and study their dynamics. In order to decouple the particles from the environment and reach ultrahigh mechanical quality factors of our oscillator, we load the particles at ambient pressure and evacuate our vacuum chamber to low pressure levels.
**Project description:**
Your project aims at the development of an alternative loading mechanism for micro sized particles that operates at ambient and vacuum conditions. You will implement piezo elements and hollow core fibres for launching the particles and characterize optically the particle size distribution and trapping efficiency of your loading mechanism at various pressures. Finally, you will combine it with optical or electrostatic on-chip traps for inertial sensing.
**Working in our group:**
We offer you close supervision through PhD and Postdocs but also expect that you work independently. In your project, you will get into contact with a multitude of technologies like optics, lasers, electronics, data evaluation and vacuum technology among others.
If we sparked your interest, contact us nmeyer@ethz.ch or rquidant@ethz.ch
**Automated loading of micro sized particles at ultrahigh vacuum – A master project in the Nanophotonic Systems Laboratory (NSL)**
We are looking for a curious and motivated master student, who wants to join our young & international NSL group and solves with us one of the current limitations in levitated nanoparticles.
**Project background:** In recent years, the dynamic field of Levitodynamics has made big advances towards the quantum world and real live applications. Many of those optomechanical experiments are conducted at ultrahigh vacuum conditions. Despite the recent advances in the field, these ultrahigh vacuum conditions still need to be broken on a daily basis, limiting the final reachable vacuum level and increasing the experimental cycle time. In our experiments, we trap nanoparticles of various materials in optical and electrostatic traps and study their dynamics. In order to decouple the particles from the environment and reach ultrahigh mechanical quality factors of our oscillator, we load the particles at ambient pressure and evacuate our vacuum chamber to low pressure levels.
**Project description:** Your project aims at the development of an alternative loading mechanism for micro sized particles that operates at ambient and vacuum conditions. You will implement piezo elements and hollow core fibres for launching the particles and characterize optically the particle size distribution and trapping efficiency of your loading mechanism at various pressures. Finally, you will combine it with optical or electrostatic on-chip traps for inertial sensing.
**Working in our group:** We offer you close supervision through PhD and Postdocs but also expect that you work independently. In your project, you will get into contact with a multitude of technologies like optics, lasers, electronics, data evaluation and vacuum technology among others.
If we sparked your interest, contact us nmeyer@ethz.ch or rquidant@ethz.ch
Launching and trapping micro-sized particles in vacuum
Launching and trapping micro-sized particles in vacuum