Why does the laser get a unique wavelength?

Solutions

Expert Solution

Due to stimulated emission in laser generation, the photons emitted are of same wavelength. Hence laser is of unique wavelength which corresponds to the charecteristic energy of the system employed for the generation of laser . like He-Ne (helium-neon) laser or Ruby laser .

genius_generous answered 1 year ago

Next > < Previous

Related Solutions

In the laser lab, temperature is used to control the wavelength of the laser, and a...

In the laser lab, temperature is used to control the wavelength of the laser, and a grating and several mirrors are used to convert the change of wavelength to change of laser beam propagation direction and finally to the change of position of the laser spot on the grid paper. If the groove separation is 0.5 micrometers, the distance between the grating and the paper is 1 meters, and if the wavelength change is 2 nm, how much does the...

Why is it difficult to get a 632 nm red laser diode (but you can get...

Why is it difficult to get a 632 nm red laser diode (but you can get a 637 nm one easily? Why are red laser diodes cheaper than green ones or blue ones?

What is the wavelength of the laser? A laser produces 24.0 mW of light. In 1.00...

What is the wavelength of the laser? A laser produces 24.0 mW of light. In 1.00 hr , the laser emits 1.51×1020 photons.

(8%) Problem 7: Consider a laser with a wavelength of 690 nm. If this laser passes...

(8%) Problem 7: Consider a laser with a wavelength of 690 nm. If this laser passes through a diffraction grating having N = 4680 lines/cm. A diffraction pattern will be observed on a screen R = 1.39 m away from the grating. Do not assume the angles are small. 33% Part (a) At what angle from the central maximum will the first maximum be observed? Give your answer in degrees. 33% Part (b) What is the distance on the screen...

An instructor wishes to determine the wavelength of the light in a laser beam.

An instructor wishes to determine the wavelength of the light in a laser beam. To do so, she directs the beam toward a partition with two tiny slits separated by 0.185 mm. An interference pattern appears on a screen that lies 4.80 m from the slit pair. The Instructor's measurements show that two adjacent bright interference fringes lie 1.59 cm apart on the screen. What is the laser's wavelength (in nm)?

Laser light from argon ion laser of wavelength 488.0 nm passes through a diffraction grating. The...

Laser light from argon ion laser of wavelength 488.0 nm passes through a diffraction grating. The first bright spots occur at an angle 6.726 degree left and right from the central maximum. How many additional pares of bright spots are there beyond the first bright spots?

Two lasers are shining on a double slit, with slit separation d. Laser 1has a wavelength of d/20, whereas laser 2 has a wavelength of d/15

Two lasers are shining on a double slit, with slit separation d. Laser 1has a wavelength of d/20, whereas laser 2 has a wavelength of d/15. The lasers produce separate interference patterns on a screen a distance 5.00 m away from the slits.Part AWhich laser has its first maximum closer to the central maximum?Part BWhat is the distance Δymax-max between the first maxima (on the same side of the central maximum) of the two patterns?Part B.1 Find the location of...

Explain why does the peak emission wavelength of LEDs increase (red shift) with temperature? Why does...

Explain why does the peak emission wavelength of LEDs increase (red shift) with temperature? Why does the peak emission intensity decrease with temperature? Use sketches and curves for the answer.

A 193nm-wavelength UV laser for eye surgery emits a 0.500mJ pulse.

A 193nm-wavelength UV laser for eye surgery emits a 0.500mJ pulse. (a) How many photons does the light pulse contain?

A beam of wavelength 310 nm from a laser is incident on a metal with work...

A beam of wavelength 310 nm from a laser is incident on a metal with work function 2.7 eV. The power of the laser is 0.15 W. (a) Does the metal emit photoelectrons? Why? (b) What is the range of photoelectron kinetic energies emitted by metal? (c) What is the range of de Broglie wavelengths of these photoelectons? (d) How does result for part (b) change if the laser power is doubled to 0.30 W? Thank you.

Subjects