Essential University Physics (3rd Edition)
3rd Edition
ISBN: 9780134202709
Author: Richard Wolfson
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Question
Chapter 36, Problem 51P
To determine
The number of lasing transitions that occur each second.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
A laser with an average power output of 15.8 mW puts out a narrow beam 2.00 mm in diameter. What are the rms values of E and B in the beam? The average power is half the peak power, and the rms fields are 1/ √2 times their maximum values.
Sketch the situation or diagram PLEASEEE. Thank you
A three level laser system emits a wavelength of 550 nm. What will be the ratio ofpopulation of upper level (N2) to lower level (N1) if the pumping mechanism is shut off(assume room temperature is 300 K). At what temperature one can achieve thepopulation ratio of ½ in this laser (K = 1.38 × 10-23 JK-1).
What is the expected color under ultraviolet light and what is the wavelength of fluorescence for CdTe quantum dots that are 3.6 nm in diameter?
CdTe has:
Band gap: 1.56eV
Effective electron mass: 1x10-31 kg
Effective hole mass: 3.64x10-31 kg
Bulk dielectric constant: 11
Chapter 36 Solutions
Essential University Physics (3rd Edition)
Ch. 36.1 - Prob. 36.1GICh. 36.2 - Prob. 36.2GICh. 36.3 - Prob. 36.3GICh. 36.4 - Prob. 36.4GICh. 36.5 - Prob. 36.5GICh. 36 - Prob. 1FTDCh. 36 - Prob. 2FTDCh. 36 - Prob. 3FTDCh. 36 - Prob. 4FTDCh. 36 - Prob. 5FTD
Ch. 36 - Prob. 6FTDCh. 36 - Prob. 7FTDCh. 36 - Prob. 8FTDCh. 36 - Prob. 9FTDCh. 36 - Prob. 10FTDCh. 36 - Prob. 11FTDCh. 36 - Prob. 12FTDCh. 36 - What distinguishes a Bose-Einstein condensate from...Ch. 36 - Prob. 14ECh. 36 - Prob. 15ECh. 36 - Prob. 16ECh. 36 - Prob. 17ECh. 36 - Prob. 18ECh. 36 - Prob. 19ECh. 36 - Prob. 20ECh. 36 - Prob. 21ECh. 36 - Prob. 22ECh. 36 - Prob. 23ECh. 36 - Prob. 24ECh. 36 - Prob. 25ECh. 36 - Prob. 26ECh. 36 - Prob. 27ECh. 36 - Prob. 28ECh. 36 - Prob. 29ECh. 36 - Prob. 30ECh. 36 - Prob. 31ECh. 36 - Prob. 32ECh. 36 - Prob. 33ECh. 36 - Prob. 34PCh. 36 - Prob. 35PCh. 36 - Prob. 36PCh. 36 - Prob. 37PCh. 36 - Prob. 38PCh. 36 - Prob. 39PCh. 36 - Prob. 40PCh. 36 - Prob. 41PCh. 36 - Prob. 42PCh. 36 - Prob. 43PCh. 36 - Prob. 44PCh. 36 - Prob. 45PCh. 36 - Prob. 46PCh. 36 - Prob. 47PCh. 36 - Prob. 48PCh. 36 - Prob. 49PCh. 36 - Prob. 50PCh. 36 - Prob. 51PCh. 36 - Prob. 52PCh. 36 - Prob. 53PCh. 36 - Prob. 54PCh. 36 - Prob. 55PCh. 36 - Prob. 56PCh. 36 - Prob. 57PCh. 36 - Prob. 58PCh. 36 - Prob. 59PCh. 36 - Prob. 60PCh. 36 - Prob. 61PCh. 36 - Prob. 62PCh. 36 - Prob. 63PCh. 36 - Prob. 64PCh. 36 - Prob. 65PCh. 36 - Prob. 66PCh. 36 - Prob. 67PCh. 36 - Prob. 68PCh. 36 - Prob. 69PCh. 36 - Prob. 70PCh. 36 - Prob. 71PCh. 36 - Prob. 72PCh. 36 - Prob. 73PCh. 36 - Prob. 74PCh. 36 - Prob. 75PCh. 36 - Prob. 76PPCh. 36 - Prob. 77PPCh. 36 - Prob. 78PPCh. 36 - Prob. 79PP
Knowledge Booster
Similar questions
- A GaAs DH injection laser (refractive index: 3.6) has an optical cavity of length 50 μm and width 20 μm. At normal operating temperature (300 K) the loss coefficient is 10 cm-1, the mirror reflectivity at each end of the optical cavity is 0.3 and the gain factor for the device is 3.76x10-2 cm/A. The device emits at a wavelength of 870 nm. 1.1 Calculate the frequency separation of the longitudinal modes and the number of longitudinal modes emitted by the device. 1.2 Determine the current threshold for the device at 300 K. 1.3 Determine the required threshold current when the diode is operated at a temperature of 60˚C.arrow_forwardThe wavelength of light from a lead-selenide (solid-state) laser is 32 um, and the power output is 2.6 mW. How many transitions occur each second? (um 10m, mW 10W) A: 5.690x1016 B: 7.568x1016 oC: 1.007x1017 D: 1.339x1017| E: 1.781x1017 OF: 2.368x1017 G: 3.150x1017 H: 4.189x1017arrow_forwardKl is a salt with lattice constant of a = 0.716 nm. Suppose one measures the powder diffraction from a cubic crystal of Kl using Cu Ka X-radiation having wavelength of 2 = 0.154 nm. The positions of the first nine reflections to occur at 20 are as the following. Assume n=1 intensity 20 a) Fill Table#1 and do peak assignment. i.e find (hkl) 20 0 d, = na/2 sin0 h² + k² + 1² = a²ldu (hkl) 21.8° 25.200 36.000 42.50 44.50 51.750 56.8° 58.450 64.65° b) From the allowed (hkl) planes that you have obtained, identify the expected crystal structure?arrow_forward
- If the radius of a calcium ion is 0.27 nm, how much energy does it take to singly ionize it? Give your answer in electron-volts (eV) with precision 0.1 eV. Give your answer to 2 significant digits.arrow_forwardAn InGaAsP semiconductor laser operating at a wavelength of 1.3 x10-6m has a cavity (formed by its interfaces with the air) of length 300 x10-6m. Assume normal incidence of the beam on the semiconductor faces. The refractive index (n) of the InGaAsP compound is 3.9 and its absorption coefficient is alpha=10cm-1. If a film is deposited on one side of the laser to produce 90% reflectance, what is the minimum gain for laser emission? . NOTE: The refractive index of air = 1 and the Reflectance for normal incidence: R=((n1-n2)/(n1+n2))2arrow_forwardImagine that there is a laser system with three levels of energy and low pumping. Assuming that the laser action takes place between the first and the second level. The inverse number of this system is Rp Rp A + A3. 31 P. N,-N, = 32 A-Bp(v) Option 2 Rp A – A + Rp 32 N, – N, =- A- Bp(v) 21 21arrow_forward
- Suppose you have a laser diode operating at a wavelength of 665 nm. Derive an equation that shows the threshold condition of the laser.arrow_forwardIf the gain of the effective medium in a laser is (1.05), its mirror reflectivity coefficient (0.999 & 0.95), the laser length (30 cm) and the loss coefficient (a=1.34x10-4 cm) calculate: a- loss factor k, b- gain of one cycle G, c- gain coefficient y?arrow_forwardUse dimensional analysis and show that the expression e=mc^2 has a unit of energy.arrow_forward
- How many photons are emitted per second from a semiconductor laser which emits 0.75mW of light at a wavelength of 540 nm?arrow_forwardThe below table lists diffraction angles for the first three peaks (second -order) of the X-ray diffraction pattern for some metal. Monochromatic x-radiation having a wavelength of (0.1234 nm) was used for BCC crystal ? (a) Determine the lattice constant. ( b) radius of atoms. Peak Number miller Diffraction indies Angle (2e) 1 111 80 101 96 3 200 102arrow_forwardA laser pulse of energy 4 mJ and the pulse duration 1.5 ns is focused on a target of radius 0.02 mm. What is the laser intensity?arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Modern PhysicsPhysicsISBN:9781111794378Author:Raymond A. Serway, Clement J. Moses, Curt A. MoyerPublisher:Cengage Learning
Physics for Scientists and Engineers with Modern ...PhysicsISBN:9781337553292Author:Raymond A. Serway, John W. JewettPublisher:Cengage Learning
Modern Physics
Physics
ISBN:9781111794378
Author:Raymond A. Serway, Clement J. Moses, Curt A. Moyer
Publisher:Cengage Learning
Physics for Scientists and Engineers with Modern ...
Physics
ISBN:9781337553292
Author:Raymond A. Serway, John W. Jewett
Publisher:Cengage Learning