Final answer:
The B. CO2 laser operates in the infrared spectrum and uses a neon helium aiming beam with a wavelength of 10.6 µm. This laser can produce both continuous and pulsed outputs. It is especially potent in surgery due to its high absorption by water in tissues.
Step-by-step explanation:
The laser in question, which is in the infrared region of the spectrum, requires a neon helium aiming beam and is delivered through an articulated arm using reflecting mirrors, is the B. CO2 laser.
This type of laser is commonly used in surgical procedures due to its specificity and the ability to precisely remove or cut tissue. The CO2 laser operates at a wavelength of 10.6 µm, which is in the infrared spectrum.
These lasers are capable of a continuous output and can also be pulsed, with some boasting extremely high powers, even exceeding 10¹² W in some cases, although more common outputs are around 10⁻³ W.
The CO2 laser's effectiveness in surgery is due to the high energy absorption by water molecules present in human tissue. This absorbed energy quickly heats and evaporates the tissue, achieving the desired surgical effects.