It impacts energy generation (photovoltaics), lighting (solid-state lighting and displays), and communications. The contribution of photonics is taken into account as "green" if it produces or conserves energy, decreases pollution, yields an environmentally sustainable result, or improves public health.
Applications of high-intensity lasers:
High-intensity laser pulses are considered as a singular sort of electromagnetic energy utterly compressed both in time and space.
In Manufacturing: Laser material processing is now a chief component of the manufacturing process. Lasers accomplish tasks ranging from heating for hardening, melting for welding and cladding, and the removal of material for drilling and cutting. High-intensity femtosecond laser processing considered a “cold” process since the substrate doesn't heat during the interaction.
In Medicine: Many types of laser surgery are now available that utilize ultrafast high-intensity laser processing of tissue. Ultra-high-intensity lasers can give hard X-rays that emanate from a nearly-point source, which provides spatially coherent X-rays. These can be transmitted through biological media and diffract, creating phase-contrast X-ray images at high resolution and contrast.