An optical depth sensing system is provided including an active illumination source; and a colloidal quantum dot photodetector. The colloidal quantum dot photodetector having colloidal quantum dots as a light sensing elements and the system has rise times that are less than 5.0 ns and fall times less than 10.0 ns.

An optical depth sensing system is provided including an active illumination source; and a colloidal quantum dot photodetector. The colloidal quantum dot photodetector having colloidal quantum dots as a light sensing elements and the system has rise times that are less than 5.0 ns and fall times less than 10.0 ns.

Systems and methods for transparent organic photovoltaic devices are provided. In one embodiment, an organic semiconductor device comprises: a first glass sheet comprising a first ultra-thin flexible glass material; at least one transparent organic photovoltaic cell bound to the first glass sheet; and a second glass sheet applied to the at least one organic photovoltaic cell, wherein the at least one transparent organic photovoltaic cell is positioned between the first glass sheet and the second glass sheet.

Apparatus for spectrometrically capturing light includes a wavelength-adjustable filter for converting spectral information into location information and an organic photodiode for converting the location information into electrical signals which can be forwarded, wherein the filter and the organic photodiode form a one-piece monolith, the organic photodiode is connected to the filter or the organic photodiode is integrated in the filter, the filter consists of at least one spectrally resolving element in the form of at least one layer-like photonic crystal which constitutes the monolith and in which two layers of variable thickness D are formed along a direction perpendicular to the incidence of light. A resonant layer is arranged between the two layers. The organic photodiode includes: a photoactive layer, a first electrode, and a second electrode sandwiching the photoactive layer, and one of the electrodes is in contact with the photonic crystal.

According to one embodiment, a flexible substrate including an insulating base including an island-shaped portion, a first to fourth strip portion, and an electrical element, wherein the electrical element includes a lower electrode, an upper electrode and an active layer, the lower electrode includes, in plan view, a first to fourth protruding portion, the first protruding portion overlaps the first strip portion, the second protruding portion overlaps the second strip portion, the third protruding portion overlaps the third strip portion, and the fourth protruding portion overlaps the fourth strip portion.

Detectors and methods of forming the same include aligning a semiconducting carbon nanotubes on a substrate in parallel to form a nanotube layer. The aligned semiconducting carbon nanotubes in the nanotube layer are cut to a uniform length corresponding to a detection frequency. Metal contacts are formed at opposite ends of the nanotube layer.

Optical receiver packages and device assemblies that include photodetector (PD) chips having focus lenses monolithically integrated on PD die backsides are disclosed. An example receiver package includes a support structure, a PD die, and an optical input device. The PD die includes a PD, integrated proximate to a first face of the PD die, and further includes a lens, integrated on, or proximate to, an opposite second face. The first face of the PD die faces the support structure, while the second face (“backside”) faces the optical input device. The optical receiver architectures described herein may provide an improvement for the optical alignment tolerance issues, especially for high-speed operation in which the active aperture of the PD may have to be very small. Furthermore, architectures described herein advantageously enable integrating a focus lens in a PD die that may be coupled to the support structure in a flip-chip arrangement.

Systems and methods to measure pulse and blood oxygen saturation in tissue using pulse oximetry with an ambient light source. Certain pulse oximeters according to various embodiments advantageously do not require and do not include a light source such as an LED, thereby reducing complexity and reducing power consumption.

A photoelectric conversion element according to the disclosure includes: a first electrode and a second electrode that are disposed to face each other; and a photoelectric conversion layer that is provided between the first electrode and the second electrode, and contains at least one kind of polycyclic aromatic compound represented by any one of the following general formula (1), the following general formula (2), and the following general formula (3): ##STR00001##

The invention relates to different aspects of a photodetector (1-8) for detecting electromagnetic radiation in a spectrally selective manner, comprising a first optoelectronic component (100-106, 108) for detecting a first wavelength of the electromagnetic radiation. The first optoelectronic component (100-106, 108) has a first optical cavity and at least one detection cell (21, 21a, 22, 22a, 23) arranged in the first optical cavity. The first optical cavity is made of two mutually spaced parallel mirror layers (11, 11a, 11′, 12, 12a). The length of the first optical cavity is configured such that for the first wavelength, a resonant wave (13, 13a), which is associated with said wavelength, of the i-th order is formed in the first optical cavity. Each detection cell (21, 21a, 22, 22a, 23) has a photoactive layer (210, 220, 230), each photoactive layer being arranged within the first optical cavity such that precisely one vibration maximum of the resonant wave (13, 13a) lies within the photoactive layer (210, 220, 230). According to a first aspect of the invention, the order of the resonant wave (13, 13a) of the first optoelectronic component (100-106, 108) is greater than 1, and at least one optically absorbent intermediate layer (30, 31) and/or at least one optically transparent contact layer (50) is arranged in the optical cavity. According to a second aspect, the first optoelectronic component (110, 110′) has at least one optically transparent spacer layer (40) in addition to the detection cell (21, 21′), said spacer layer being arranged in the first optical cavity between one of the mirror layers (11, 12) and the detection cell (21, 21′), and at least one outer contact (60, 60′), which adjoins an outer surface of the detection cell (21, 21′) and consists of an electrically conductive material.