Abstract: A security article includes an optical component that includes a plurality of optical channels with a Fano resonance characteristic. An optical channel, of the plurality of optical channels, is configured to pass a first portion of a first set of light beams (that are associated with a first wavelength range) when the first set of light beams falls incident on at least one of a first surface or a second surface of the optical channel, reflect a second portion of the first set of light beams when the first set of light beams falls incident on the first surface of the optical channel, and reflect at least a portion of a second set of light beams (that are associated with a second wavelength range) when the second set of light beams falls incident on the second surface of the optical channel.

Abstract: An image capture device may include a first spectral filter and a second spectral filter arranged so that a panoramic image capture operation captures light filtered by the first spectral filter and light filtered by the second spectral filter in a same region of a combined image and one or more processors to: capture a plurality of images based on the panoramic image capture operation; extract first information and second information from the plurality of images, wherein the first information is associated with the first spectral filter and the second information is associated with the second spectral filter; identify an association between the first information and the second information based on a feature captured in the plurality of images via the first spectral filter and the second spectral filter; and store or provide information based on the association between the first information and the second information.

Abstract: A filter may include a substrate. The filter may include a stepped medium disposed on the substrate. The filter may include a first mirror disposed on the stepped medium. The first mirror may form a stepped mirror surface. Each step, of the stepped mirror surface may correspond to a channel, of a set of channels, of the filter. The filter may include a spacer disposed on the stepped mirror surface. The filter may include a second mirror disposed on another surface of the spacer.

Abstract: An optical measurement device may include a light source; an emission optic configured to direct a first portion of light generated by the light source to a measurement target; a collection optic configured to receive light from the measurement target; an optical conduit configured to direct a second portion of light generated by the light source to a spectral reference; the spectral reference; a sensor; and a filter. A first portion of the filter may be provided between the collection optic and a first portion of the sensor. A second portion of the filter may be provided between the spectral reference and a second portion of the sensor.

Abstract: A device may determine a time-of-flight measurement by performing a sample of a sensor based on light received via at least one first spectral filter, wherein the at least one first spectral filter is associated with a spectral range for a time-of-flight measurement; determine that a condition is satisfied with regard to the time-of-flight measurement, wherein the condition relates to an orientation or a position of the sensor or the sensor device relative to a measurement target; trigger a spectrometry measurement to be performed based on determining that the condition is satisfied with regard to the time-of-flight measurement; and perform, based on light received via at least one second spectral filter and by performing a sample of the sensor, the spectrometry measurement for the measurement target based on the condition being satisfied with regard to the time-of-flight measurement.

Abstract: An optical device may comprise an array of sensor elements and an array of optical channels disposed on the array of sensor elements. At least one optical channel of the array of optical channels may be configured to pass bandpass filtered light to at least one sensor element of the array of sensor elements. At least one other optical channel of the array of optical channels may be configured to pass non-bandpass filtered light to at least one other sensor element of the array of sensor elements.

Abstract: A filter may include a substrate. The filter may include a stepped medium disposed on the substrate. The filter may include a first mirror disposed on the stepped medium. The first mirror may form a stepped mirror surface. Each step, of the stepped mirror surface may correspond to a channel, of a set of channels, of the filter. The filter may include a spacer disposed on the stepped mirror surface. The filter may include a second mirror disposed on another surface of the spacer.

Abstract: An optical filter may include a substrate. The optical filter may include a first mirror. The optical filter may include a second mirror. The optical filter may include a spacer. The first mirror, the second mirror, and the spacer may form a plurality of component filters. A first component filter, of the plurality of component filters, may be associated with a first cross-sectional area and a second component filter, of the plurality of component filters, is associated with a second cross-sectional area. The first cross-sectional area and the second cross-sectional area may be configured to response balance the first component filter and the second component filter.

Abstract: An optical device may include an optical filter disposed over a first surface of one or more substrates. The optical filter may include an aperture and may be configured to pass light that is received via the aperture and that is associated with one or more wavelength ranges via the one or more substrates based on an angle of incidence of the light on the optical filter. The optical device may include one or more optical elements disposed over a second surface of the one or more substrates that are configured to direct light beams of the light that are associated with a particular wavelength range, of the one or more wavelength ranges, to a particular set of sensor elements of an optical sensor. The optical filter may include a thin film optical interference filter and the one or more optical elements may include one or more metamaterial structures.

Abstract: A multispectral sensor device may include a sensor array comprising a plurality of channels and one or more processors to determine that a time-sensitive measurement is to be performed, wherein the time-sensitive measurement is to be performed using data collected by one or more channels of the plurality of channels; cause the data to be collected by a proper subset of channels, of the plurality of channels, wherein the proper subset of channels includes the one or more channels; and determine the time-sensitive measurement based on the data.

Abstract: In some implementations, an optical device may include an aperture, one or more optical elements, an optical filter, and an optical sensor. The aperture may be configured to receive light. The one or more optical elements may be configured to diffuse the light received by the aperture, direct the diffused light to the optical filter via a folded optical path, wherein a length of the folded optical path is greater than a distance between the aperture and an input surface of the optical filter, and cause the diffused light to be distributed across the input surface of the optical filter. The optical filter may be configured to filter the diffused light distributed across the input surface of the optical filter to pass portions of the diffused light associated with one or more wavelengths to the optical sensor.

Abstract: A security article includes an optical component that includes a plurality of optical channels with a Fano resonance characteristic. An optical channel, of the plurality of optical channels, is configured to pass a first portion of a first set of light beams (that are associated with a first wavelength range) when the first set of light beams falls incident on at least one of a first surface or a second surface of the optical channel, reflect a second portion of the first set of light beams when the first set of light beams falls incident on the first surface of the optical channel, and reflect at least a portion of a second set of light beams (that are associated with a second wavelength range) when the second set of light beams falls incident on the second surface of the optical channel.

Abstract: A device may determine a time-of-flight measurement by performing a sample of a sensor based on light received via at least one first spectral filter, wherein the at least one first spectral filter is associated with a spectral range for a time-of-flight measurement; determine that a condition is satisfied with regard to the time-of-flight measurement, wherein the condition relates to an orientation or a position of the sensor or the sensor device relative to a measurement target; trigger a spectrometry measurement to be performed based on determining that the condition is satisfied with regard to the time-of-flight measurement; and perform, based on light received via at least one second spectral filter and by performing a sample of the sensor, the spectrometry measurement for the measurement target based on the condition being satisfied with regard to the time-of-flight measurement.

Abstract: A photonic system includes a light source and a photonic structure. The photonic structure includes an optical transmission structure and an optical absorption structure. The optical transmission structure is configured to transmit light associated with a first wavelength range. The optical absorption structure is configured to absorb light associated with a second wavelength range. The light source is configured to provide a light beam with a wavelength that is within the second wavelength range to the optical absorption structure. The optical absorption structure is configured to generate and provide heat to the optical transmission structure when the light beam falls incident on the optical absorption structure.

Abstract: An optical filter includes a first mirror that has a first uniform thickness, a second mirror that has a second uniform thickness, and a spacer that is positioned between the first mirror and the second mirror. The spacer has a variable thickness along a first axis of the optical filter. In some implementations, a thickness profile of the spacer, along the first axis, includes one or more portions that have a non-linear slope with an absolute value that is greater than zero.

Abstract: An optical filter includes a plurality of optical channels that each have a Fano resonance characteristic. A first optical channel, of the plurality of optical channels, is configured to pass a first portion of a first set of light beams (that are associated with a first wavelength range) and reflect a second portion of the first set of light beams when the first set of light beams falls incident on a particular surface of the first optical channel. A second optical channel, of the plurality of optical channels, is configured to pass a first portion of a second set of light beams (that are associated with a second wavelength range) and reflect a second portion of the second set of light beams when the second set of light beams falls incident on a particular surface of the second optical channel.

Abstract: An optical sensor device may comprise an optical sensor comprising a set of sensor elements; an optical filter comprising one or more channels, wherein each channel, of the one or more channels, is configured to pass light associated with particular wavelengths to a subset of sensor elements, of the set of sensor elements, of the optical sensor; a phase mask configured to distribute a plurality of light beams associated with a subject in an encoded pattern on an input surface of the optical filter; and one or more processors. The one or more processors may be configured to obtain, from the optical sensor, sensor data associated with the subject and determine, based on the sensor data, spectral information associated with the subject. The one or more processors may determine, based on the sensor data and information associated with the encoded pattern, spatial information associated with the subject.

Abstract: An optical device may include an optical filter disposed over a first surface of one or more substrates. The optical filter may include an aperture and may be configured to pass light that is received via the aperture and that is associated with one or more wavelength ranges via the one or more substrates based on an angle of incidence of the light on the optical filter. The optical device may include one or more optical elements disposed over a second surface of the one or more substrates that are configured to direct light beams of the light that are associated with a particular wavelength range, of the one or more wavelength ranges, to a particular set of sensor elements of an optical sensor. The optical filter may include a thin film optical interference filter and the one or more optical elements may include one or more metamaterial structures.

Abstract: A multispectral sensor device may include a sensor array comprising a plurality of channels and one or more processors to determine that a time-sensitive measurement is to be performed, wherein the time-sensitive measurement is to be performed using data collected by one or more channels of the plurality of channels; cause the data to be collected by a proper subset of channels, of the plurality of channels, wherein the proper subset of channels includes the one or more channels; and determine the time-sensitive measurement based on the data.

Abstract: An optical system includes an optical element and an optical filter with a first set of channels and a second set of channels respectively associated with a first region and a second region of the optical filter. The optical element causes first light beams and second light beams associated with a subject to respectively fall incident on the first region within a first incidence angle range and on the second region within a second incidence angle range. A first channel, of the first set of channels, passes, based on the first incidence angle range, a set of the first light beams that are associated with a first subrange of a particular wavelength range. A second channel, of the second set of channels, passes, based on the second incidence angle range, a set of the second light beams that are associated with a second subrange of the particular wavelength range.