Physics - Physics
A laser produces a beam of a single frequency or monochromatic light because of the collective light emission from many atoms. When the optical media in which the beam is of correct geometry, the resulting light beam is also coherent. In this case, it means the waves of light are traveling together with their associated waves in phase with each other. The name laser is an acronym for  Light Amplification by Stimulated Emission of Radiation. This results in a beam of light that is very directional with high intensity. Lasers are widely used in medical science, the music industry, and engineering.  Laser light is so well defined it can be focused to a point concentrating its energy.  Before you begin, be sure to review the following resource:   (1) How a Laser Works - YouTube    In this case study, you are going to apply what you know about light wave properties to investigate the nature of particular laser operation.  In the scenario provided, you are going to determine the following quantities: The lasers energy per photon. The pulse energy for the laser during a specific time interval.  The number of photons in a single laser pulse. -------------- The following is a demonstration of the calculations you will perform during this case study assignment.  A laser is used in eye surgery to weld a torn retina back into place. The lasers wavelength is 514 nm (λ)(λ) and its power is 1.5 watts in each laser pulse.  During the surgery, the laser is pulsed for 50 ms. During that pulse, what is the average energy of the laser? How many photons are produced? The laser wavelength is given.  We want to find the frequency using the speed of light (c) equation.  c=λfc=λf Solving for frequency, and inserting the values for the speed of light and the given wavelength, we the get the following: f=cλ=3×108ms514×10−9m=5.84×1014Hzf=cλ=3×108ms514×10−9m=5.84×1014Hz To find the energy of each photon in the laser beam, we have to use the following formula that relates energy to frequency via Plancks constant h =6.63× 10-34 Js. E=hfE=hf The energy of each photon would then be: E=hf=(6.63×10−34J⋅s)(5.84×1014Hz)=3.87×10−19JE=hf=(6.63×10−34J⋅s)(5.84×1014Hz)=3.87×10−19J It is important to note that this is the energy of a single photon in the laser beam! The Energy of the pulse is defined by the product of the pulse power and the time so  E=Pt=(1.5W)(50×10−3s)=0.075JE=Pt=(1.5W)(50×10−3s)=0.075J Then the energy of each pulse is 0.075 Joules. The number photons n in each beam pulse can be found by dividing the pulse energy by the energy of a single photon:    E=0.075J3.87×10−19J=1.94×1017E=0.075J3.87×10−19J=1.94×1017 n =1.94×1017  is the number of photons produced in this pulse. --------------- Given the results of this exercise above, let’s evaluate the situation below. A neodymium YAG laser is used to repair glaucoma damage in another patient. Its wavelength = 1064 nm and produces an Energy of 4.1X10-3 joules. How many photons does it produce?  If its power is also 1.5 watts. How long is its pulse length?Unit 5 Case study Laser Energy and Heat transfer Below is a video that can be helpful: (1) How a Laser Works - YouTube A Laser is used to in eye surgery to weld a torn retina back into place. The laser wavelength is 514 nm and its Pulse Power is Ppulse = 1.5 Watts in each laser pulse. During the surgery the laser is pulsed for a time duration of 50 ms. During that pulse how many photons are produced? The laser wavelength is given. We want to find the frequency first . The energy of each photon; = The Energy of the pulse is defined by the product of the pulse power and the time so Then energy of each pulse is ,075 Joules. The number photons n is: 17 is the number of photons produced in this pulse. Given the results of this exercise A neodymium YAG laser is used to repair glaucoma damage in another patient. Its wavelength = 1064 nm and produces an Energy of 4.1X10-3 joules. 1. What is the energy of each photon? 2. How many photons does it produce? 3. If this laser power is also 1.5 watts: How long is its pulse length?
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Your assignment may be more than 5 paragraphs but not less. INSTRUCTIONS:  To access the FNU Online Library for journals and articles you can go the FNU library link here:  https://www.fnu.edu/library/ In order to n that draws upon the theoretical reading to explain and contextualize the design choices. Be sure to directly quote or paraphrase the reading ce to the vaccine. Your campaign must educate and inform the audience on the benefits but also create for safe and open dialogue. A key metric of your campaign will be the direct increase in numbers.  Key outcomes: The approach that you take must be clear Mechanical Engineering Organic chemistry Geometry nment Topic You will need to pick one topic for your project (5 pts) Literature search You will need to perform a literature search for your topic Geophysics you been involved with a company doing a redesign of business processes Communication on Customer Relations. 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Furman was originally sentenced to death because of a murder he committed in Georgia but the court debated whether or not this was a violation of his 8th amend One of the first conflicts that would need to be investigated would be whether the human service professional followed the responsibility to client ethical standard.  While developing a relationship with client it is important to clarify that if danger or Ethical behavior is a critical topic in the workplace because the impact of it can make or break a business No matter which type of health care organization With a direct sale During the pandemic Computers are being used to monitor the spread of outbreaks in different areas of the world and with this record 3. Furman v. Georgia is a U.S Supreme Court case that resolves around the Eighth Amendments ban on cruel and unsual punishment in death penalty cases. The Furman v. Georgia case was based on Furman being convicted of murder in Georgia. Furman was caught i One major ethical conflict that may arise in my investigation is the Responsibility to Client in both Standard 3 and Standard 4 of the Ethical Standards for Human Service Professionals (2015).  Making sure we do not disclose information without consent ev 4. Identify two examples of real world problems that you have observed in your personal Summary & Evaluation: Reference & 188. Academic Search Ultimate Ethics We can mention at least one example of how the violation of ethical standards can be prevented. Many organizations promote ethical self-regulation by creating moral codes to help direct their business activities *DDB is used for the first three years For example The inbound logistics for William Instrument refer to purchase components from various electronic firms. During the purchase process William need to consider the quality and price of the components. In this case 4. A U.S. Supreme Court case known as Furman v. Georgia (1972) is a landmark case that involved Eighth Amendment’s ban of unusual and cruel punishment in death penalty cases (Furman v. Georgia (1972) With covid coming into place In my opinion with Not necessarily all home buyers are the same! When you choose to work with we buy ugly houses Baltimore & nationwide USA The ability to view ourselves from an unbiased perspective allows us to critically assess our personal strengths and weaknesses. This is an important step in the process of finding the right resources for our personal learning style. Ego and pride can be · By Day 1 of this week While you must form your answers to the questions below from our assigned reading material CliftonLarsonAllen LLP (2013) 5 The family dynamic is awkward at first since the most outgoing and straight forward person in the family in Linda Urien The most important benefit of my statistical analysis would be the accuracy with which I interpret the data. 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