Abstract: A food processing device or food storage device (70), having: a chamber (72) for housing a foodstuff (42) to be processed or stored; and a nutrition/ingredient analysis system (30), having: an electromagnetic radiation source (32); a radiation guide (34) for guiding the electromagnetic radiation based on total internal reflection (attenuated total reflection, ATR), wherein the radiation guide comprises an input (36) coupled to the electromagnetic radiation source (32), an output (38), and a sensing surface (40) between the input and output for placing against a foodstuff to be analyzed, wherein the sensing surface (40) is for contact with the foodstuff (42); a detector (44) for detecting guided electromagnetic radiation at the output of the radiation guide; and a filter arrangement (46) for wavelength filtering the guided electromagnetic radiation reaching the detector, wherein the filter arrangement includes a plurality of optical bandpass filters (46a, 46b), and the plurality of filters are selectively mova

Abstract: A spectrometer includes an emitter that is configured to emit electromagnetic radiation, a sample area that is arranged at an outer face of the spectrometer, a modulation unit including an electrochromic material, an optical filter, an optical detector, an integrated circuit that has a main plane of extension, and an optical path for electromagnetic radiation emitted by the emitter towards the optical detector via the sample area, the modulation unit and the optical filter, wherein the electrochromic material is electrically connected with the integrated circuit, and the modulation unit is configured to modulate electromagnetic radiation temporally. Furthermore, a method for detecting electromagnetic radiation is provided.

Abstract: The present disclosure relates to an optoelectronic device for manipulating electromagnetic radiation. Drawbacks of conventional systems like material constraints, system complexity and tuning speed are overcome by the optoelectronic device comprising a substrate with at least one tuning structure arranged on the substrate, wherein the tuning structure comprises an electro-optical material. The tuning structure comprises a first and a second electrical contact. A cover layer covers the at least one tuning structure. An optical structure is arranged on the cover layer. A voltage source is electrically connected to the first and the second electrical contact and provided for generating electric fields within the at least one tuning structure.

Abstract: An optical element for introducing a predetermined phase delay into incident electromagnetic radiation. The optical element comprises a first layer and a second layer arranged in a propagation path of a portion of the electromagnetic radiation. The first layer comprises a transmission regions configured to introduce a first phase delay into the portion of electromagnetic radiation propagating therethrough. The second layer comprises a metasurface configured to introduce a second phase delay into the portion of electromagnetic radiation propagating therethrough. The metasurface comprises subwavelength sized structures .

Abstract: Various embodiments may relate to an optical system. The optical system may include a lens structure configured to generate an outgoing Gaussian beam based on an incoming Gaussian beam. The optical system may also include a light source configured to provide the incoming Gaussian beam to the lens structure. The lens structure may be a flat lens or a phase plate.

Abstract: A food processing device or food storage device (70), comprising: a chamber (72) for housing a foodstuff (42) to be processed or stored; and a nutrition/ingredient analysis system (30), comprising: an electromagnetic radiation source (32); a radiation guide (34) for guiding the electromagnetic radiation based on total internal reflection (attenuated total reflection, ATR), wherein the radiation guide comprises an input (36) coupled to the electromagnetic radiation source (32), an output (38), and a sensing surface (40) between the input and output for placing against a foodstuff to be analyzed, wherein the sensing surface (40) is for contact with the foodstuff (42); a detector (44) for detecting guided electromagnetic radiation at the output of the radiation guide; and a filter arrangement (46) for wavelength filtering the guided electromagnetic radiation reaching the detector, wherein the filter arrangement comprises a plurality of optical bandpass filters (46a, 46b), and the plurality of filters are selecti