A laser panel, a laser array device, and a laser display. The laser panel and the laser array device separately comprise multiple groups of independent laser light source modules; each group of laser light source modules comprises plural light sources; the plural light sources are all produced by inkjet printing; the laser display and a voltage-driven laser display separately comprise the laser panel. Producing a laser panel by inkjet printing provides a novel technical solution for cheap and industrial manufacturing of laser panels. It is difficult to generate laser coherent superposition between the light emitted by the laser light source module, and therefore, speckles caused by laser coherence in conventional laser display technologies are greatly eliminated. The present invention achieves a voltage-driven laser display, and facilitates achieving a better display effect while reducing the volume of the display.

A laser panel, a laser array device, and a laser display. The laser panel and the laser array device separately comprise multiple groups of independent laser light source modules; each group of laser light source modules comprises plural light sources; the plural light sources are all produced by inkjet printing; the laser display and a voltage-driven laser display separately comprise the laser panel. Producing a laser panel by inkjet printing provides a novel technical solution for cheap and industrial manufacturing of laser panels. It is difficult to generate laser coherent superposition between the light emitted by the laser light source module, and therefore, speckles caused by laser coherence in conventional laser display technologies are greatly eliminated. The present invention achieves a voltage-driven laser display, and facilitates achieving a better display effect while reducing the volume of the display.

A method of generating a light-matter hybrid species of charged polaritons at room temperature includes providing an organic semiconductor microcavity being a doped organic semiconductor sandwiched in a microcavity capable of generating an optical resonance and coupling light to the polaron optical transition in the organic semiconductor microcavity thereby forming polaron-polaritons. The doped organic semiconductor may be a hole/electron transport material having a polaron absorption coefficient exceeding 10.sup.2 cm.sup.−1 and capable of generating a polaron optical transition with a linewidth smaller than a predetermined threshold. The optical resonance of the microcavity has a resonance frequency matched with the polaron optical transition.

A method of generating a light-matter hybrid species of charged polaritons at room temperature includes providing an organic semiconductor microcavity being a doped organic semiconductor sandwiched in a microcavity capable of generating an optical resonance and coupling light to the polaron optical transition in the organic semiconductor microcavity thereby forming polaron-polaritons. The doped organic semiconductor may be a hole/electron transport material having a polaron absorption coefficient exceeding 10.sup.2 cm.sup.−1 and capable of generating a polaron optical transition with a linewidth smaller than a predetermined threshold. The optical resonance of the microcavity has a resonance frequency matched with the polaron optical transition.

The present application relates to compounds of Formula I having a negative singlet-triplet gap and a positive oscillator strength. The present application also relates to use of the compounds of Formula (I) in photocatalysis and in OLEDs as emitters and/or dopants.

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The present application relates to compounds of Formula I having a negative singlet-triplet gap and a positive oscillator strength. The present application also relates to use of the compounds of Formula (I) in photocatalysis and in OLEDs as emitters and/or dopants.

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An on-chip optical absorption sensor for determining a concentration of a specimen in a sample, the optical absorption sensor comprising at least one light emitting device, configured to emit light in a first direction and a second direction being opposite the first direction; at least one sample holder configured to receive the sample, wherein the at least one sample holder is at least partially transparent for the emitted light, such that at least a portion of the light emitted in the first direction can propagate through at least a portion of the sample holder; at least one first light detector being arranged to detect at least partially the intensity I of the propagated light having propagated through the sample holder in the first direction; at least one second light detector being arranged to detect at least partially the intensity I of the light emitted in the second direction.

An on-chip optical absorption sensor for determining a concentration of a specimen in a sample, the optical absorption sensor comprising at least one light emitting device, configured to emit light in a first direction and a second direction being opposite the first direction; at least one sample holder configured to receive the sample, wherein the at least one sample holder is at least partially transparent for the emitted light, such that at least a portion of the light emitted in the first direction can propagate through at least a portion of the sample holder; at least one first light detector being arranged to detect at least partially the intensity I of the propagated light having propagated through the sample holder in the first direction; at least one second light detector being arranged to detect at least partially the intensity I of the light emitted in the second direction.

A distributed feedback laser having a conjugated dendrimer as the active lasing component, and a method for patterning conjugated dendrimers.

A distributed feedback laser having a conjugated dendrimer as the active lasing component, and a method for patterning conjugated dendrimers.