Explore BrainMass

Laser Eye Surgery Pulses

This content was STOLEN from BrainMass.com - View the original, and get the already-completed solution here!

Laser eye surgery is carried out by delivering highly intense bursts of energy using electromagnetic waves. A typical laser used in such surgery has a wavelength of 190nm (ultraviolet light) and produces bursts of light that last for 1 ms. It delivers an energy of 0.5 mJ to a circular spot on the cornea with a diameter of 1 mm. (The light is well approximated by a plane wave for the short distance between the laser and the cornea.) Assuming the energy of a single pulse is delivered to a volume of the cornea about 1 mm^3, and assuming the pulses are delivered so quickly that the energy deposited has no time to flow out of that volume, how many pulses are required to raise the temperature of that volume from 20 C to 100 C? (Assume that the cornea has a heat capacity similar to that of water.)

© BrainMass Inc. brainmass.com October 25, 2018, 6:37 am ad1c9bdddf

Solution Preview

Hello and thank you for posting your question to Brainmass.
The solution is attached below in two files. The files are identical in content, only differ in format. The first is in MS Word format, while the other is in Adobe pdf ...

Solution Summary

Laser eye surgery pulses are examined.

See Also This Related BrainMass Solution

A brief synopsis of roles of conditioning, reinforcement, and punishment on learning process

Evaluate the roles of conditioning, reinforcement, and punishment in the learning process using findings historic and current research studies.

View Full Posting Details