Abstract:
An analysis system includes a moveable focusing lens, a laser (typically an eye safe laser) having an output directed at the focusing lens, and a spectrometer outputting intensity data from a sample. A controller system is responsive to the spectrometer and is configured to energize the laser, process the output of the spectrometer, and adjust the position of the focusing lens relative to the sample until the spectrometer output indicates a maximum or near maximum intensity resulting from a laser output focused to a spot on the sample.
Abstract:
A spectrometer (100) for analyzing the spectrum of an upstream light beam (1), includes an entrance slit (101) and collimating elements (110) suitable for generating, from the upstream light beam, a collimated light beam (10), characterized in that it also includes: a polarization-dependent diffraction grating (120) suitable for diffracting, at each wavelength (11, 12) of the spectrum of the upstream light beam, the collimated light beam into a first diffracted light beam (11, 12) and a second diffracted light beam (21, 22); optical recombining elements (130) including a planar optical reflecting surface (130) perpendicular to the grating and suitable for deviating at least the second diffracted light beam; and focussing elements (140) suitable for focussing, at each wavelength, the first diffracted light beam and the second diffracted light beam onto one and the same focussing area (141).
Abstract:
An analysis system includes a moveable focusing lens, a laser (typically an eye safe laser) having an output directed at the focusing lens, and a spectrometer outputting intensity data from a sample. A controller system is responsive to the spectrometer and is configured to energize the laser, process the output of the spectrometer, and adjust the position of the focusing lens relative to the sample until the spectrometer output indicates a maximum or near maximum intensity resulting from a laser output focused to a spot on the sample.
Abstract:
Disclosed herein is an apparatus for and method of measuring bio-chips, which can implement an illumination method of a novel type that illuminates a bio sample (which may be also referred to as a “bio specimen”) through a side face of a substrate using a diffusion plate to form an evanescent field by the illumination light over the entire surface of a substrate so as to uniformly secure brightness of the illuminated light over a wide area of a substrate, thereby more efficiently measuring fluorescence information of a bio-chip over a wide field of view.
Abstract:
The present invention concerns a method for inspecting the surface of an object (10) such as a wafer comprising tridimensional structures (11), using a confocal chromatic device with a plurality of optical measurement channels (24) and a chromatic lens (13) allowing optical wavelengths of a broadband light source (19) to be focused at different axial distances defining a chromatic measurement range, the method comprising a step of obtaining an intensity information corresponding to the intensity of the light actually focused on an interface of the object (10) within the chromatic measurement range at a plurality of measurement points (15) on the object (10) by measuring a total intensity over the full spectrum of the light collected by at least some of the optical measurement channels (24) in a confocal configuration.
Abstract:
The present invention concerns a confocal chromatic device, comprising : at least one chromatic lens (13) with an extended axial chromatism; at least one broadband light source (19); at least one optical detection means (20, 21); and at least one measurement channel (24) with a planar Y-junction (18) made with a planar waveguide optics technology, and arranged for transferring light from said at least one light source (19) towards said at least one chromatic lens (13) and for transferring light reflected back through said at least one chromatic lens (13) towards said at least one optical detection means (20, 21).
Abstract:
Microfluidic devices for analyzing droplets are disclosed. A described microfluidic device includes a substrate and a microfluidic channel formed on the substrate. The microfluidic channel includes passages where each passage has a mask pattern configured to modulate a signal of a droplet passing through that passage, such that droplets passing through the passages produce signals. The microfluidic device also includes a detector configured to detect the signals. Methods of analyzing droplets with a microfluidic device having a microfluidic channel formed on a substrate are disclosed. A described method includes passing droplets through the passages, modulating signals form the droplets using mask patterns formed on the passages; and detecting the signals.
Abstract:
An analysis system includes a moveable focusing lens, a laser (typically an eye safe laser) having an output directed at the focusing lens, and a spectrometer outputting intensity data from a sample. A controller system is responsive to the spectrometer and is configured to energize the laser, process the output of the spectrometer, and adjust the position of the focusing lens relative to the sample until the spectrometer output indicates a maximum or near maximum intensity resulting from a laser output focused to a spot on the sample.
Abstract:
Technologies are generally described for operating and manufacturing optomechanical accelerometers. In some examples, an optomechanical accelerometer device is described that uses a cavity resonant displacement sensor based on a zipper photonic crystal nano-eavity to measure the displacement, of an integrated test mass generated by acceleration applied to the chip. The cavity-resonant sensor may he folly integrated on-chip and exhibit an enhanced displacement resolution due to its strong optomechanical, coupling. The accelerometer structure may be fabricated in a silicon nitride thin film and constitute a rectangular test mass flexibly suspended on high aspect ratio inorganic nitride nano-tethers under high tensile stress. By increasing the mechanical Q-factors through adjustment of tether width and tether length, the noise-equivalent acceleration (NBA) may be reduced, while maintaining a large operation bandwidth. The mechanical Q-factor may be improved with thinner (e.g.,