The present disclosure relates to a lighting device for automatically switching between a visible light source and an infrared light source. The lighting device may include a light source, an infrared filter, and a driving module for driving the infrared filter.

The present description relates, according to one aspect, to a high-peak-power laser pulse generation system (10), comprising at least one first light source (101) for emitting first laser pulses (I.sub.L), a fiber device (110) for transporting said first laser pulses, comprising at least one first multimode fiber with a single core designed to receive said first laser pulses, and a module (102) for temporally shaping said first laser pulses, arranged upstream of the fiber device, configured so as to reduce the power spectral density of said pulses by reducing the temporal coherence.

An electrowetting device includes an electrode substrate including a first substrate, a plurality of first drive electrodes formed on the first substrate, and a water-repellent insulating layer formed on the plurality of first drive electrodes, a counter substrate including a second substrate, and disposed so as to face the electrode substrate with a predetermined gap therebetween, a sealing portion provided in a sealing region at the electrode substrate, and bonding the electrode substrate and the counter substrate, and an injection valve for injecting a droplet into the gap, the injection valve being located in the sealing region and including a first valve body formed of an electric field responsive gel.

An optical measurement system for illuminating a sample with filtered light and measuring fluorescence from the sample, which system includes a broadband light source arranged to provide a broadband beam; a first tunable element arranged to filter at least a portion of the broadband beam thereby providing filtered light; and a control unit arranged to provide a control signal to said first tunable element, wherein the first tunable element includes an acousto-optic filter (AOTF) and the control signal to the AOTF includes an acoustic RF signal provided by a Voltage Controlled Oscillator (VCO) arranged so the AOTF provides an out-of-band suppression of more than or equal to 25 dB.

Provided is a non-transitory computer-readable recording medium recording an optical measurement control program in a light detection device, the program causing a computer to execute a process of measuring light to be measured by acquiring an electric signal output from the light detector, the optical measurement control program causing the computer to function as: a voltage control unit controlling the potential difference generated between the pair of mirrors to gradually increase until the potential difference reaches a set potential difference corresponding to a wavelength of the light to be measured before the acquisition of the electric signal is started; and a signal acquisition unit acquiring the electric signal in a state where the voltage control unit allows the set potential difference to be generated between the pair of mirrors.

A fluorescence measurement system comprising a broadband light source and acousto-optical tunable filter (AOTF) controlled by a control unit using an acoustic RF signal provided by a Voltage Controlled Oscillator (VCO).

The present disclosure relates to a lighting device for automatically switching between a visible light source and an infrared light source. The lighting device may include a light source, an infrared filter, and a driving module for driving the infrared filter.

Optomechanical device for frequency doubling enhancement are described. The devices include a substrate through which light of a first wavelength is introduced, a first reflector mirror, a conductive layer disposed on the first reflector mirror, and a second mirror spaced apart from the conductive layer, thereby forming an optical cavity between the second mirror and the conductive layer. The devices also include a power source coupled to the second mirror and the conductive layer and a monolayer of non-linear optical material disposed within the optical cavity, the monolayer being configured to produce light of a second wavelength upon interaction with the light of the first wavelength. The second mirror is deformable upon introduction of voltage from the power source and deformation of the second mirror changes a length of the optical cavity, thereby enhancing a power output of the light of the second wavelength produced by the monolayer.

Systems and methods are described that relate to a nanophotonic optical system. The nanophotonic optical system may be configured to transmit light in a range of wavelengths. The nanophotonic optical system includes at least one nanophotonic element, which includes a two-dimensional arrangement of sub-wavelength regions of a first material interspersed within a second material, the first and second materials having different indices of refraction. The at least one nanophotonic element includes a surface having a curvature and an optical phase transfer function dependent on the curvature of the surface. The nanophotonic optical system includes an actuator configured to modify the curvature of the surface and a controller. The controller is configured to determine a threshold optical phase transfer function and cause the actuator to modify the curvature of the surface to provide the threshold optical phase transfer function.

The present application is directed in various illustrative embodiments to an optical waveguide, an optical waveguide system with such an optical waveguide, a light energy storage structure, light confining structures, a light energy storage system and an energy storage and/or conversion system with such an optical waveguide system. In an aspect, an optical waveguide is provided, comprising an optical fiber with a fiber core and an optical active cladding structure over at least a portion of the fiber core at a first end of the optical waveguide, wherein the optical active cladding structure comprises a Bragg mirror stacking having a high transmittance in a first wavelength region and a high reflectivity in a second wavelength region of wavelengths longer than wavelengths in the first wavelength region, and a wavelength conversion coating over the fiber core of the optical fiber. The wavelength conversion coating is configured to convert radiation with wavelengths in the first wavelength region into radiation with wavelengths in the second wavelength region and the Bragg mirror stacking is disposed over the wavelength conversion coating.