Slow Light To Speed Up Lidar Sensors Development

Particularly when it comes to a 3-D scanner in cutting-edge technology, faster is sometimes better. Researchers are working to create a 3-D lidar sensor that is portable and simple to use, with uses in autonomous vehicles, robots and drones, security systems, and more. In a field where speed is frequently valued above other factors, researchers think they have created a technique to acquire such a sensor by taking advantage of slow light.

LiDAR, or light detection and ranging, sensors use laser light to map distances between distant things and for other purposes. Many systems used in contemporary LiDAR sensors comprise a laser source, a photodetector that turns light into current, and an optical beam steering device that directs the light in the right direction.

The group’s “photonic crystal” path was directed through a silicon-etched medium. Light is slowed down and emitted into free space when compelled to engage with the photonic crystal. The beam was then pointed in the intended direction by the researchers using a prism lens. For LiDAR devices, non-mechanical steering is believed to be essential.

The resulting technique and apparatus are compact and devoid of movable parts, paving the way for a solid-state LiDAR. Particularly for mobile apps like autonomous vehicles, such a gadget is regarded as being more resilient, smaller, and less expensive to manufacture.

Read more

Related Content: Modulation Of Light Enhances LiDAR