Rostec develops lasers to destroy cancer cells

Roselektronika develops semiconductor lasers of the infrared range 2-5 microns of the quantum cascade type. The technology will be used for selective destruction of cancer cells and for wound healing, as well as in optical and space communications, high-resolution molecular spectroscopy, and highly sensitive spectral gas analysis.

Semiconductor IR lasers will be widely used in medicine, primarily to improve the accuracy of disease diagnosis, as well as for the selective destruction of cancer cells and wound healing. In addition, they can be used in optical and space communications, high-resolution molecular spectroscopy, highly sensitive spectral gas analysis, in particular in volcanology, in the control of emissions into the atmosphere and fast-flowing technological processes.

"Currently, we are performing the fundamental part of the development and choosing in which application direction it is worth developing from the point of view of potential demand," explained Igor Kozlov, General Director of Roselectronics. According to him, it is too early to talk about the timing.

The creation of IR lasers operating efficiently at room temperature in a continuous mode is difficult due to the noticeable predominance of non-radiative recombination processes of nonequilibrium carriers over the process of radiative recombination. In addition, IR lasers have high energy losses associated with intraband absorption of radiation.

To solve these problems, two concepts of IR lasers have been proposed: quantum cascade lasers based on interband transitions and lasers based on interband transitions based on semiconductor heterostructures with quantum wells and superlattices.

Quantum cascade lasers are layered heterostructures consisting of active regions in which photons are emitted and injection regions through which carriers fly to the next active region.

Portal "Eternal youth" http://vechnayamolodost.ru  12.10.2016