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I. For a laser pulse with energy of l 씨, duration 100 fs and wavelength 800...
(1.0.10) In femtosecond laser spectroscopy, a laser pulse is created which is so short that the...
(1.0.10) In femtosecond laser spectroscopy, a laser pulse is created which is so short that the entire pulse arrives at a fixed target in well under 1.0 ns. Suppose a 50.0 fs (f = 10-15) laser pulse with a circular cross-section is created. The power delivered by the pulse to a target is 10.0 kW, and the diameter of the beam is 20 µm. (a) What is the length of the pulse? (b) What is the intensity of the pulse?...
Very short pulses of high-intensity laser beams are used to repair detached portions of the retina...
Very short pulses of high-intensity laser beams are used to repair detached portions of the retina of the eye. The brief pulses of energy absorbed by the retina welds the detached portion back into place. In one such procedure, a laser beam has a wavelength of 810 nm and delivers 250 mW of power spread over a circular spot 510 μm in diameter. The vitreous humor (the transparent fluid that fills most of the eye) has an index of refraction...
Consider light fron a laser at a wavelength of 800 nrn, and which outputs pulses of length 8 μιη in their direction of travel. Each pulse has an energy of 50 nJ (a) Sketch the clectric field of the p...
Consider light fron a laser at a wavelength of 800 nrn, and which outputs pulses of length 8 μιη in their direction of travel. Each pulse has an energy of 50 nJ (a) Sketch the clectric field of the pulse as a function of position at a fixed time. Ensure you label the important length scales. (b) Calculate the number of photons contained in a single pulsc (c) Using the Heisenberg uncertainty principle, estimate the uncertainty in the wavelength of...
Consider light fron a laser at a wavelength of 800 nrn, and which outputs pulses of length 8 μιη in their direction of travel. Each pulse has an energy of 50 nJ (a) Sketch the clectric field of the p...
Consider light fron a laser at a wavelength of 800 nrn, and which outputs pulses of length 8 μιη in their direction of travel. Each pulse has an energy of 50 nJ (a) Sketch the clectric field of the pulse as a function of position at a fixed time. Ensure you label the important length scales. (b) Calculate the number of photons contained in a single pulsc (c) Using the Heisenberg uncertainty principle, estimate the uncertainty in the wavelength of...
A He-Ne gas laser pulse with a wavelength of 594 nm contains 4.15 mJ of energy....
A He-Ne gas laser pulse with a wavelength of 594 nm contains
4.15 mJ of energy. a) How many photons are contained in one laser
pulse? x10a photons a = b) Titanium metal has a work function
(LaTeX: \Phi Φ ) of 4.33 eV. Is this laser pulse able to eject an
electron from the surface of titanium? (yes / no) c) Show that this
pulse can eject an electron from cesium (LaTeX: \Phi Φ = 1.97 eV).
Upload a...
Problem 3 Part A The energy levels of atomic mattinium are given by the expression -10.2 eV En = ηλ/2 (a) Draw an energy level diagram showing the lowest four energy levels of atomic mattinium, as we...
Problem 3 Part A The energy levels of atomic mattinium are given by the expression -10.2 eV En = ηλ/2 (a) Draw an energy level diagram showing the lowest four energy levels of atomic mattinium, as well as the ionisation limit. Label each of the energy levels with their quantum number and their energy in electron volts. (b) One of the puzzles of classical physics was that the absorption and emission spectra of atomic gases were different from one another....
Q1. (2pts) A ImW laser beam has a 2 mm diameter operating at wavelength near 600...
Q1. (2pts) A ImW laser beam has a 2 mm diameter operating at wavelength near 600 nm. traveling in air. Calculate the irradiance of the source I, and determine the amplitude of the electric field Eo assuming all the wavefronts are homogeneous. Type to enter text 02. (2pts) For a given laser power P and beam area A formulate the beam energy density if the divergence of the beam is negligible? Using the formula you obtain, calculate the beam energy...
PLEASE ANSWER CORRECTLY AND I WILL RATE YOU HIGH 1) Light of wavelength 500 nm illuminates...
PLEASE ANSWER CORRECTLY AND I WILL RATE YOU HIGH 1) Light of wavelength 500 nm illuminates a round 0.50-mm-diameter hole. A screen is placed 6.0 m past the slit. What is the width of the central bright circle on the screen? a. 7.3 mm b. 260 μm c. 15 mm d. 3700 μm 2) A spherical oil droplet with nine excess electrons is held stationary in an electric field between two large horizontal plates that are 2.25 cm apart. The...
ieative Problems (SHOW YOUR WORK FOR PARTIAL CREDITS) 1) I 12pts I suppose an object is...
ieative Problems (SHOW YOUR WORK FOR PARTIAL CREDITS) 1) I 12pts I suppose an object is placed 60㎝ in front of a lems that ha, a fealength of 40 cm. Where is the image located? What are the magnification and the character of the image? L5x10rw.The - l-2) [12pts] A high-energy pulsed laser omits a 1.0 ns long pulse of average power beam is nearly a cylinder 2.2x10 m in radius. A) Determine the energy delivered in each pulse B)...
A ray of light consisting of both blue wavelength (lambda = 480 nm) and red wavelengths...
A ray of light consisting of both blue wavelength (lambda = 480 nm) and red wavelengths (lambda = 670 nm) is air in incident on a piece of acrylic (1.52) at an angle of 30 degree from the surface an shown in the figure below. What is the angular separation between the red and blue rays that pass through the acrylic? (The index of refraction for blue light is 1.4636 and red light is 1.4561 in acrylic.) 0.22 degree 0.27...
Consider light fron a laser at a wavelength of 800 nrn, and which outputs pulses of length 8 μιη in their direction of travel. Each pulse has an energy of 50 nJ (a) Sketch the clectric field of the pulse as a function of position at a fixed time. Ensure you label the important length scales. (b) Calculate the number of photons contained in a single pulsc (c) Using the Heisenberg uncertainty principle, estimate the uncertainty in the wavelength of...
Consider light fron a laser at a wavelength of 800 nrn, and which outputs pulses of length 8 μιη in their direction of travel. Each pulse has an energy of 50 nJ (a) Sketch the clectric field of the pulse as a function of position at a fixed time. Ensure you label the important length scales. (b) Calculate the number of photons contained in a single pulsc (c) Using the Heisenberg uncertainty principle, estimate the uncertainty in the wavelength of...
A He-Ne gas laser pulse with a wavelength of 594 nm contains
4.15 mJ of energy. a) How many photons are contained in one laser
pulse? x10a photons a = b) Titanium metal has a work function
(LaTeX: \Phi Φ ) of 4.33 eV. Is this laser pulse able to eject an
electron from the surface of titanium? (yes / no) c) Show that this
pulse can eject an electron from cesium (LaTeX: \Phi Φ = 1.97 eV).
Upload a...
Problem 3 Part A The energy levels of atomic mattinium are given by the expression -10.2 eV En = ηλ/2 (a) Draw an energy level diagram showing the lowest four energy levels of atomic mattinium, as well as the ionisation limit. Label each of the energy levels with their quantum number and their energy in electron volts. (b) One of the puzzles of classical physics was that the absorption and emission spectra of atomic gases were different from one another....
Q1. (2pts) A ImW laser beam has a 2 mm diameter operating at wavelength near 600 nm. traveling in air. Calculate the irradiance of the source I, and determine the amplitude of the electric field Eo assuming all the wavefronts are homogeneous. Type to enter text 02. (2pts) For a given laser power P and beam area A formulate the beam energy density if the divergence of the beam is negligible? Using the formula you obtain, calculate the beam energy...
ieative Problems (SHOW YOUR WORK FOR PARTIAL CREDITS) 1) I 12pts I suppose an object is placed 60㎝ in front of a lems that ha, a fealength of 40 cm. Where is the image located? What are the magnification and the character of the image? L5x10rw.The - l-2) [12pts] A high-energy pulsed laser omits a 1.0 ns long pulse of average power beam is nearly a cylinder 2.2x10 m in radius. A) Determine the energy delivered in each pulse B)...
A ray of light consisting of both blue wavelength (lambda = 480 nm) and red wavelengths (lambda = 670 nm) is air in incident on a piece of acrylic (1.52) at an angle of 30 degree from the surface an shown in the figure below. What is the angular separation between the red and blue rays that pass through the acrylic? (The index of refraction for blue light is 1.4636 and red light is 1.4561 in acrylic.) 0.22 degree 0.27...
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