Question

LASIK eye surgery uses pulses of laser light to shave off tissue from the cornea, reshaping...

LASIK eye surgery uses pulses of laser light to shave off tissue from the cornea, reshaping it. A typical LASIK laser emits a 1.0-mm-diameter laser beam with a wavelength of 193 nm. Each laser pulse lasts 13 ns and contains 1.3 mJ of light energy. What is the power of one laser pulse? During the very brief time of the pulse, what is the intensity of the light wave?

Homework Answers

Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
A laser used in LASIK eye surgery produces 54.0 pulses per second. The wavelength is 193...
A laser used in LASIK eye surgery produces 54.0 pulses per second. The wavelength is 193 nm (in air), and each pulse lasts 10.0 ps. The average power emitted by the laser is 224.0 mW and the beam diameter is 0.800 mm. What is the total energy of a single pulse? What is the intensity during a pulse?
A laser used in LASIK eye surgery produces 55 pulses per second. The wavelength is 196.0...
A laser used in LASIK eye surgery produces 55 pulses per second. The wavelength is 196.0 nm (in air), and each pulse lasts 21.1 ps. The average power emitted by the laser is 120.0 mW and the beam diameter is 0.800 mm. How long (in centimeters) is a single pulse of the laser in air?
A LASIK vision correction system uses a laser that emits 10 ns -long pulses of light,...
A LASIK vision correction system uses a laser that emits 10 ns -long pulses of light, each with 2.5 mJ of energy. The laser is focused to a 0.75 mm -diameter circle. Part A- What is the average power of each laser pulse? Part B-What is the electric field strength of the laser light at the focus point? Express your answers using two significant figures.
In laser eye surgery, the laser emits a 1.26-ns pulse focused on a spot that is...
In laser eye surgery, the laser emits a 1.26-ns pulse focused on a spot that is 37.0 μm in diameter. 1. If the energy contained in the pulse is 2.65 mJ , what is the power per square meter (the irradiance) associated with this beam? 2. Suppose a molecule with a diameter of 0.604 nm is irradiated by the laser beam. How much energy does the molecule receive in one pulse from the laser? (This much energy is likely to...
The YAG Laser in the Laser Laboratory is a pulsed laser that emits infrared light of...
The YAG Laser in the Laser Laboratory is a pulsed laser that emits infrared light of wavelength 1064 nm at a frequency of 10 Hz. Suppose that one pulse from the YAG Laser has an average energy of 1.2 J and lasts for a time of 14 ns. What is the energy (in eV) of one photon of this laser light? How many photons are emitted in one pulse from the YAG Laser? What is the power output (in W)...
Photorefractive keratectomy (PRK) is a laser-based surgical procedure that corrects near and farsightedness by removing part...
Photorefractive keratectomy (PRK) is a laser-based surgical procedure that corrects near and farsightedness by removing part of the lens of the eye to change its curvature and hence focal length. This procedure can remove 0.25 mm thick using pulses lasting 10.0 ns from a laser beam of wavelength 200 nm. Low-intensity beams can be used because each individual photon has enough energy to break the covalent bonds of the tissue. (a) In what part of the electromagnetic spectrum does this...
Electromagnetic Waves In 2018, the Nobel Prize in Physics was awarded to three people, one of...
Electromagnetic Waves In 2018, the Nobel Prize in Physics was awarded to three people, one of whom is the first woman laureate in physics in 55 years, Prof. Donna Strickland. Prof. Strickland developed the technique of chirped pulse amplification" which allows for the construction of extremely high power lasers, called pulsed lasers. These lasers are used today in many fields, including laser eye surgery. A higher power laser means that an equivalent amount of energy can be delivered in less...
A typical helium-neon laser found in supermarket checkout scanners emits 633-nm-wavelength light in a 1.1-mm-diameter beam...
A typical helium-neon laser found in supermarket checkout scanners emits 633-nm-wavelength light in a 1.1-mm-diameter beam with a power of 1.3 mW . A) What's the amplitude of the oscillating electric field in the laser beam? B) What's the amplitude of the oscillating magnetic field in the laser beam?
The light from a red laser pointer has a wavelength of about 600 nm. If this...
The light from a red laser pointer has a wavelength of about 600 nm. If this laser has a power of 0.18 mW, what is the momentum carried by a 1.8-s pulse of this radiation? (in kg · m/s) The magnetic field associated with an electromagnetic wave has an amplitude of 1.6 μT. (a) What is the amplitude of the electric field associated with this wave? (in V/m) (b) What is the intensity of this wave? (W/m2) (c) What is...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT