Abstract:
A method for sensing a target object using optical mode excitations in microresonators, comprises: preparing at least one cluster including at least two microresonators; obtaining some first spectra of the cluster; adsorbing the target object on a surface of the cluster; obtaining some second spectra of the cluster; and sensing the target object by comparing a lineshape of the first spectra with a lineshape of the second spectra.
Abstract:
A method for sensing a target object using optical mode excitations in microresonators, comprises: preparing at least one cluster including at least two microresonators; obtaining some first spectra of the cluster; adsorbing the target object on a surface of the cluster; obtaining some second spectra of the cluster; and sensing the target object by comparing a lineshape of the first spectra with a lineshape of the second spectra.
Abstract:
A method for sensing a biochemical and/or biomechanical process of a biological material, comprising the steps of: disposing at least a part of a microresonator into the biological material; and before, during, or after disposing the part of the microresonator into the biological material, sensing the process of the biological material by analysis of one or more optical cavity modes of the microresonator.
Abstract:
A system for characterising a material is provided. The system includes an optical sensor including an optical waveguide, the optical waveguide having first and second ends and being characterised by having a numerical aperture greater than or equal to 0.2, and a microresonator including an optically active material, the microresonator being positioned in an optical near field of an end face of the first end of the optical waveguide such that the optically active material is excitable by light. The system further includes a light source for exciting the optically active material of the microresonator so as to generate whispering gallery modes (WGMs) in the microresonator and a light collector for collecting an intensity of light that is associated with the WGMs excited in the microresonator.
Abstract:
A method for analyzing a dense medium with optical cavity modes, comprising the steps of: disposing at least a part of a microlaser into the dense medium; and before, during, or after disposing the part of the microlaser into the dense medium, sensing a condition or a change of the dense medium by means of analysis of optical cavity modes.
Abstract:
The invention concerns a cassette for photographic film. The cassette for photographic film according to the invention comprises: a winding spool (45); a photographic film (41) designed to be wound on said winding spool, means being provided for fixing one end of the film to said spool, said film being provided with perforations (48) formed at intervals along at least one of its longitudinal edges, and designed to cooperate with drive means (46) provided on a camera (42), a perforated leader (43) enabling the film to be engaged with said drive means (46) of said camera for the purpose of its winding onto a receiving spool (44), at least one of the perforations (60) of the leader intended for the initial engagement of the film (41) with the drive means (46) being longer along the longitudinal axis of the film than the other perforations (48).