high temperatures includes a resonator within which is disposed a sample to be analyzed a laser beam from a laser is conducted toward and focused upon the sample for heating the same and levitation of the sample during measurement proceedings within the resonator as a means of thermally isolating the sample from its surroundings is achieved by means of a levitation gas from a gas source which is introduced into the resonator by means of a constriction zone aperture whereby the sample is maintained within an upper cavity of the resonator application_number US 31750889 A description the invention in general and some specific examples will be described below it should be understood that all of the equivalent means i e those that perform the same function for the purpose of obtaining the same results are suitable and are part of the invention the general inventive concept consists of using two principal means combined to provide for total independence of the sample relative to its surroundings and its heating it is a question on the one hand of maintaining the sample in constant levitation inside the resonator using a controlled flow of a levitation gas on the other hand it is a question of heating the sample using a coherent light beam focused on the sample the electronic system of the resonator is kept under a flow of evaporated nitrogen the general operation of the systems indicated above will now be described in more detail the probe pursuant to the invention has a probe body 1 to be inserted instead of a conventional probe in a superconducting magnetic coil 2.