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2. Columbus, Ohio - Wikipedia

   en.wikipedia.org/wiki/Columbus,_Ohio

   Columbus (/ k ə ˈ l ʌ m b ə s /, kə-LUM-bəs) is the capital and most populous city of the U.S. state of Ohio.With a 2020 census population of 905,748, it is the 14th-most populous city in the U.S., the second-most populous city in the Midwest after Chicago, and the third-most populous U.S. state capital after Phoenix, Arizona and Austin, Texas.

3. Carbon-dioxide laser - Wikipedia

   en.wikipedia.org/wiki/Carbon-dioxide_laser

   The carbon-dioxide laser (CO 2 laser) was one of the earliest gas lasers to be developed. It was invented by Kumar Patel of Bell Labs in 1964 and is still one of the most useful types of laser. Carbon-dioxide lasers are the highest-power continuous-wave lasers that are currently available.

4. List of laser applications - Wikipedia

   en.wikipedia.org/wiki/List_of_laser_applications

   High power applications, such as hardening, cladding, and deep penetrating welding, require multiple kW of optical power, and are used in a broad range of industrial processes. Micro material processing is a category that includes all laser material processing applications under 1 kilowatt. [12]

5. Laser safety - Wikipedia

   en.wikipedia.org/wiki/Laser_safety

   Since even relatively small amounts of laser light can lead to permanent eye injuries, the sale and usage of lasers is typically subject to government regulations. Moderate and high-power lasers are potentially hazardous because they can burn the retina, or even the skin.

6. Solid-state laser - Wikipedia

   en.wikipedia.org/wiki/Solid-state_laser

   A solid-state laser is a laser that uses a gain medium that is a solid, rather than a liquid as in dye lasers or a gas as in gas lasers. Semiconductor -based lasers are also in the solid state, but are generally considered as a separate class from solid-state lasers, called laser diodes .

7. Laser ultrasonics - Wikipedia

   en.wikipedia.org/wiki/Laser_ultrasonics

   The use of a high power laser, with consequent vaporization of the material, is the optimal way to obtain an ultrasonic response from the object. However, to fall within the scope of non-destructive measurements, it is preferred to avoid this phenomenon by using low power lasers.