Technical publications linked to our expertises
Thanks to the high innovation rate of our company, Kapteos is frequently publishing technical papers during seminars, exhibitions, conferences, symposiums or after tests that highlight a noticeable measuring performance or a first-ever result.
These publications follow the peer-review process where recognized international experts, criticize, comment and validate the submitted papers which must contain a significant novelty.
This page shows only abstracts and part of the introduction of the technical publications. To access to the full content of a publication, please contact us.
In this paper we demonstrate the effectiveness of an active optical detuning circuit for magnetic resonance imaging endoluminal receiver coil. Three endoluminal coils prototypes were built.
Time-resolved absolute measurements by electro-optic effect of giant electromagnetic pulses due to laser-plasma interaction in nanosecond regime
We describe the first electro-optical absolute measurements of electromagnetic pulses (EMPs) generated by laser-plasma interaction in nanosecond regime.
In magnetic resonance imaging (MRI), the real time measurement of RF electrical field E associated with the RF magnetic field B1 is important to quantify the energy absorbed by the tissues and to assess possible safety hazards due to local heating phenomenon.
Based on optical rectiﬁcation in a ZnTe crystal, a terahertz vectorial antenna is here theoretically and experimentally demonstrated. The use of the particular orientation leads to a polarization state angle tunable THz source.
Despite technical MRI improvements, spatial resolution and achievable image quality with external coil are still limited for the examination of deep regions. It has been demonstrated that an endoluminal (internal) coil provides an important increase in local signal to noise ratio (SNR), and enables very high resolution images.
Single Shot and Vectorial Characterization of Intense Electric Field With Pigtailed Electrooptic Probe
In this paper we illustrate the ability of electro-optic sensors to perform electric (E)-field vectorial measurements. Thanks to their frequency response spreading over nine decades and to their measurement dynamics reaching 120 dB, these sensors are of high interest for some applications.
High-Power Electromagnetic (HPEM) measurements in free space, in near field or inside equipments require a wide frequency bandwidth without perturbation induced by the measurement transducer.
Pulsed power and intense electric field now apply to a large variety of domains for which the need of in situ nonperturbative measurements remains a challenge.
We have developed ultra compact and fully dielectric pigtailed optical sensors for a simultaneous 2-components electric-field measurement. Their measurement dynamic covers the V/m up to MV/m electric-field strength range.
Magnetic Resonance Imaging (MRI) is based on a spatial characterization of the nuclear magnetization. Recording the variation of the nuclear magnetization is often realized with a MRI external surface coil. However, spatial resolution and image quality achievable with external surface coils are limited.