Abstract: A multi-pixel spectroscopy sensor for spectral analysis of a sample under test including an array of pixel elements generating a dataset including a plurality of data values corresponding to the pixel elements upon illumination of the sample by a light source. Each of the pixel elements including a stack of layers including first and second reflective structures, a phase tuning element, a detector element, and contact elements. The sensor further includes a read-out circuit connected to each of the contact elements for simultaneous read-out of a plurality of photocurrents for generating and outputting the dataset for the spectral analysis of the sample under test. The phase tuning element of each of the pixel elements is configured for a different wavelength response of the light and each photodetector of the pixel elements is comprised of a semiconductor material.

Abstract: Disclosed are a system and a method for collecting and returning luggage at public transportation systems. The method includes storing characteristic features and metadata corresponding to a luggage and its individual owner, and associating a color while collecting the luggage at a luggage submitting terminal. The luggage may be easily identified at a luggage providing terminal, using an identification tag attached to the luggage and the associated metadata (including the associated colour). Upon an end of journey, the individual may be allowed to pick the luggage upon providing a handshake signal. In case the handshake signal is not provided and the individual owner's metadata is not matched, security agencies may be alerted about picking of the luggage by another individual.

Abstract: A multi-pixel spectroscopy sensor for spectral analysis of a sample under test including an array of pixel elements generating a dataset including a plurality of data values corresponding to the pixel elements upon illumination of the sample by a light source. Each of the pixel elements including a stack of layers including first and second reflective structures, a phase tuning element, a detector element, and contact elements. The sensor further includes a read-out circuit connected to each of the contact elements for simultaneous read-out of a plurality of photocurrents for generating and outputting the dataset for the spectral analysis of the sample under test. The phase tuning element of each of the pixel elements is configured for a different wavelength response of the light and each photodetector of the pixel elements is comprised of a semiconductor material.

Abstract: Disclosed are a system and a method for collecting and returning luggage at public transportation systems. The method includes storing characteristic features and metadata corresponding to a luggage and its individual owner, and associating a color while collecting the luggage at a luggage submitting terminal. The luggage may be easily identified at a luggage providing terminal, using an identification tag attached to the luggage and the associated metadata (including the associated colour). Upon an end of journey, the individual may be allowed to pick the luggage upon providing a handshake signal. In case the handshake signal is not provided and the individual owner's metadata is not matched, security agencies may be alerted about picking of the luggage by another individual.

Abstract: A double membrane microspectrometer is provided that includes a first membrane having a first and second doped semiconductor layers, and a first intrinsic layer is disposed between the first and second layers, where the first intrinsic layer includes an optically absorbing material, a first pattern of through holes are disposed perpendicular through the first membrane having lateral support arms, a second membrane having a third doped layer and a fourth layer is an intrinsic layer or a doped layer, where the second membrane includes a second pattern of through holes, where the first membrane is separated from the second membrane by an insulating bridge layer and is supported above the second membrane by lateral support arms, where an absorption spectrum of the absorbing material is dependent on the separation distance of the membranes, electrodes are disposed on the first layer, the second layer, and the third layer operate the separation.

Abstract: A double membrane microspectrometer is provided that includes a first membrane having a first and second doped semiconductor layers, and a first intrinsic layer is disposed between the first and second layers, where the first intrinsic layer includes an optically absorbing material, a first pattern of through holes are disposed perpendicular through the first membrane having lateral support arms, a second membrane having a third doped layer and a fourth layer is an intrinsic layer or a doped layer, where the second membrane includes a second pattern of through holes, where the first membrane is separated from the second membrane by an insulating bridge layer and is supported above the second membrane by lateral support arms, where an absorption spectrum of the absorbing material is dependent on the separation distance of the membranes, electrodes are disposed on the first layer, the second layer, and the third layer operate the separation.

Abstract: The invention concerns a superluminescent light emitting diode (SLED) comprising a semiconductor heterostructure forming a PN junction and a waveguide. The semiconductor heterostructure includes a gain region with a contact means for biasing the PN junction so as to produce light emission including stimulated emission from an active zone of the gain region, and in the active zone a plurality of quantum dot layers, each quantum dot layer made up of a plurality of quantum dots and a plurality of adjoining layers, each adjoining layer adjacent to one of said quantum dot layers. The material composition or a deposition parameter of at least two adjoining layers is different. This ensures an enhanced emission spectral width.

Abstract: The invention concerns a superluminescent light emitting diode (SLED) comprising a semiconductor heterostructure forming a PN junction and a waveguide. The semiconductor heterostructure includes a gain region with a contact means for biasing the PN junction so as to produce light emission including stimulated emission from an active zone of the gain region, and in the active zone a plurality of quantum dot layers, each quantum dot layer made up of a plurality of quantum dots and a plurality of adjoining layers, each adjoining layer adjacent to one of said quantum dot layers. The material composition or a deposition parameter of at least two adjoining layers is different. This ensures an enhanced emission spectral width.