_ Department of nano laser and electronics
Electronics and nano lasers electronic pulse Nano Laser pulse structure and function
Researcher and author: Dr. ( Afshin Rashid)
Note: Pulsed nano lasers are lasers that do not emit light continuously , but in the form of light pulses (blinking). This term is commonly used for switched lasers , which typically emit nanosecond pulses.
Depending on the duration of the pulse , the energy of the pulse , the amount of repetition of the pulse and the required wavelength , many different methods are used to generate the pulse and many different types of pulsed nano lasers are used. Most laser material processing is performed by "short pulse length" (or "very fast") pulsed nanolasers. For a given laser pulse energy, the shorter the pulse, the higher the peak laser power.
Lasers are a beam of electromagnetic radiation. Laser beams can be produced from visible light, X-rays, ultraviolet rays or infrared light. Laser is a type of excited and energetic light that cannot be seen in nature under normal conditions, but it can be created with special technology and equipment. Laser has differences with ordinary light, and these characteristics cause its special abilities and applications. Laser light is brighter and more intense than natural light . Laser light can break the hardest metals and easily pass through a hard object like diamond and create a hole in it. The low-power and ultra-fine beams of other types of lasers can be used to perform very delicate operations such as surgery on the human eye. Laser light can be controlled with high precision He took control and used it as a continuous beam called continuous laser or fast bursts called pulsed laser . Unlike normal light, laser light has completely coordinated energy, which creates a lot of power to do different things in it. The word laser is derived from the first letters of the words that describe its characteristics, which means light amplification by the induced emission of radiation . The difference between laser beam and normal light is in the important properties that exist in this beam. These characteristics are: coherence, monotony, directness of high intensity. The mentioned properties cannot be seen in normal light and these properties are used for different tasks.
Electronic pulsed nano lasers Nano Laser pulse is a laser that on the scale of nano dimensions, these tiny lasers can be adjusted quickly and together with the small footprint, make them ideal candidates for optical computing on a chip . The intense optical fields of such a laser also enable the amplification effect in nonlinear optics or scattering (Raman) with increased surface area , thus paving the way for integrated nanophotonic circuits , in general Nano Laser or amplification is a process in which the medium transfers part of its energy to the emitted electromagnetic radiation And as a result, the optical power increases. This is the basic principle of all lasers . Quantitatively, gain is a measure of the ability of a laser medium to increase optical power.
Conclusion :
Pulsed nanolasers are lasers that do not emit light continuously , but in the form of light pulses (flashes). This term is commonly used for switched lasers , which typically emit nanosecond pulses.
Researcher and author: Dr. ( Afshin Rashid)
Specialized doctorate in nano-microelectronics