Fundamental interaction tests in magneto-optics.
Our Team.
“Ultimate measurments for fundamental interaction tests”
Our first goal is to experimentally demonstrate fundamental results of the quantum electrodynamics theory. This encompasses ultimate measurment of the effect of the magnetic field on light polarization and magnetic effect on the atomic response. Our high magnetic field approach could be used for metrological applications, as the design of a flexible tool for very precise magnetic field measurments.
1. LASER LOCKING
Polarisation and locking of lasers with extreme precision using micro optical mirrors.
2. CHARACTERIZATION OF INTERFERENTIAL MIRRORS AND BIREFRINGENT MATERIALS
Characterization, test and utilisation of interferential mirrors and birefringent materials. Experimental setup for low symmetry systems study.
1. MAGNETIC FIELD ABSOLUTE SENSOR
New technique to measure pulsed magnetic fields based on the use of Rubidium in gas phase as a metrological standard. We have therefore developed an instrument based on laser inducing transitions at about 780~nm (D2 line) in a Rubidium gas contained in a mini-cell of 3~mm~x~3~mm cross section.
2. OPTICAL CAVITY DESIGN
Design and characterisation of optical cavities.
Dynamical Cavity Mirror Birefringence techniques.
Experimental setup based on time dependent magnetic fields and a high finesse Fabry-Perot cavity
Apparatus based on an up-to-date resonant optical cavity coupled to longitudinal and transverse magnetic fields.
Scientific Fields.
Team Assets.
KEY TECHNICAL RESEARCH SKILLS
Precise optical polarization measurement
Realization of optical cavities of very high finesse
Precise atomic spectroscopy under magnetic fields
Electrical addressing of nano-objects through cleanroom processes
Magneto-optics
SPECIFIC EQUIPMENT
Ultra sharp optical cavities (finesse>500000)
Very low losses interferential mirrors (losses~10-6)
Doppler free saturated absorption spectroscopy
Fiber coupled measurement head for atomic spectroscopy in high magnetic fields
Optoelectronic instrumentation for laser locking
Patented Technology.
Publications.
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Photos (©) Left and middle: Gideon Laureijs. Right: Dick van Aalst
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