Abstract: Laser warning systems are provided for providing an alert when exposure to laser light sources is detected. The system includes a colloidal quantum dot detector module including a colloidal quantum dot photodetector and a processor coupled to the colloidal quantum dot detector module. The system detects interference patterns generated in the colloidal quantum dot detector module by light illuminating the laser warning system and determines if the light illuminating the laser warning systems is laser light based on a magnitude of interference infringes generated by the light illuminating the laser warning system.

Abstract: Laser warning systems are provided for providing an alert when exposure to laser light sources is detected. The system includes a colloidal quantum dot detector module including a colloidal quantum dot photodetector and a processor coupled to the colloidal quantum dot detector module. The system detects interference patterns generated in the colloidal quantum dot detector module by light illuminating the laser warning system and determines if the light illuminating the laser warning systems is laser light based on a magnitude of interference infringes generated by the light illuminating the laser warning system.

Abstract: An integrated device is provided including a substrate; a CQD photodetector on the substrate; and an integrated optical grating contact on the substrate. The integrated optical grating contact is a conductive grating contact and is provided between the substrate and the photodetector. The integrated device further includes a top contact on the photodetector.

Abstract: A colloidal quantum dot (CQD) photodetector is provided including an optical blocking shield and a CQD photodetector element on the optical blocking shield. The optical blocking shield is integrated with the CQD photodetector element to provide an integrated structure and the integrated structure is provided on a wafer. The CQD photodetector detects light with sensitivity from about 250 nm to about 5000 nm. The CQD photodetector may be included as part of high resolution applications as well as global shutters for these applications.