Research progress of deep ultraviolet all-solid-state laser pointer

Deep ultraviolet all-solid-state laser sources refer to solid-state lasers with output wavelengths below 200nm. Compared with incoherent light sources such as synchrotron radiation and gas discharge, they have high photon energy, high spectral resolution, strong photon flux and high density, and low repetition frequency. Features such as high repetition frequency and multiple operation modes in…

The Mars expedition mission offers the opportunity to bring a laser pointer

Research work must be able to provide or develop useful and necessary technologies for U.S. space missions. Although JPL also encourages researchers to publish papers, it pays more attention to whether the research results can be used for it. My work there is to develop advanced mid-infrared semiconductor laser pointer whose performance indicators must meet the requirements…

India will build a laser pointer fence along the India-Pakistan border

The BBC reported that India will build laser fences in more than 40 “vulnerable areas” along the border between India and Pakistan to prevent Pakistani personnel from infiltrating India. An official of the Indian Ministry of Interior stated that India will build a laser pointer fence around the border with Pakistan to prevent Pakistani personnel from infiltrating…

The self-cleaning phenomenon of the beam in the multi-mode fiber laser pointer

Single-mode fiber is often used in the construction of femtosecond fiber laser pointer. Its small core diameter is accompanied by strong nonlinearity, which is easy to cause pulse splitting, thus limiting the increase of laser power. Using the space-time mode locking of a graded-index multimode fiber, theoretically high power can be obtained, and the self-cleaning effect…

The laser pointer will form a laser beam after focusing

Waterjet laser cutting is a hybrid processing method, also known as laser microjet. It combines the laser pointer with “fine” water jets, and the water jets (water jets) are accurately guided by a method similar to conventional optical fibers. The laser beam thus realizes the cutting, and the water jet continuously cools the cutting area and effectively…