What's more, you will examine basic design principles and requirements of underlying laser systems and active If you wish to opt out, please close your SlideShare account. Introducing Textbook Solutions. LASER SCANNING – PRINCIPLES AND APPLICATIONS SUMMARY In this overview paper the principles of laser scanning systems are presented. This preview shows page 1 - 9 out of 54 pages. Gain a true understanding of military laser principles and applications. For a limited time, find answers and explanations to over 1.2 million textbook exercises for FREE! Course Hero is not sponsored or endorsed by any college or university. Bloodless Surgery. Laser ppt seva for poor people. every physician should know the mechanism of action and indications and different types of lasers used in medical practice. Clipping is a handy way to collect important slides you want to go back to later. Similar to the HeNe-laser the Argon ion gas laser is pumped by electric dis­ charge and emitts light at wavelength: 488.0nm,514.5nm,351nm,465.8nm, 472.7nm, 528.7nm.It is used in applications ranging from retinal photother­ apy for diabetes, lithography, and pumping of other lasers. and an X-ray free-electron laser is shown in Table 1. Laser vineet gupta. 1970-1980 Excimer lasers - Excited dimers, Free electron laser, X-ray laser, ‘γ-ray’. referred to as laser. application of laser 140120109032. LASER LASERS AND IT’Z APPLICATIONS IN DENTISTRY By: Lokender Yadav 1 2. l. • To reach the high powers required from these lasers, cavity lengths AP30009 Laser principles and applications Name: Dr. Yuen Hong Tsang (Peter) Office: Room BC617a Applied Physics Department, The Hong Kong Polytechnic University, Office Telephone No. AP30009 Laser principles and applications Name: Dr. Yuen Hong Tsang (Peter) Office: Room BC617a Applied Physics Staring into such a Basics of Lasers 1. This includes a survey of different range measurement principles as well as different mechanisms for the deflection of the emitted laser … contents • Introduction • Electromagnetic radiation • Various terms • Absorption spectroscopy • UV/visible spectroscopy • Applications 3. As of this date, Scribd will manage your SlideShare account and any content you may have on SlideShare, and Scribd's General Terms of Use and Privacy Policy will apply. Applications of lasers Lasers in communication: In optical fiber communication laser bandwidth is very high compared to the radio and microwave communications. Broadly speaking, applications of lasers can be put into two categories, one is based on the wave or particle characteristics of light while the other is governed by the light matter • Spectroscopy is the study of the interaction between electromagnetic radiation and matter. In this course, you will review and understand the fundamental physics and technology of underlying laser and laser-based systems, including basic operating principles and device capabilities. FALLSEM2019-20_PHY1701_ETH_VL2019201005764_Reference_Material_I_05-Sep-2019_LASER_PART_1.ppt, A1338431719_13465_11_2020_laser fundamentals.ppt, The Hong Kong Polytechnic University • AP PH AP30009, Hong Kong Polytechnic University • ENG 4001, Lovely Professional University • CSE PHY 109, The Hong Kong Polytechnic University • APPLIED PH AP30009. See our Privacy Policy and User Agreement for details. Now customize the name of a clipboard to store your clips. 3rd Gen. SASE-FREE-ELECTRON LASER Short pulse SASE-FREE-ELECTRON LASER Wavelength range, nm 1-0.1 Emittance, nm rad 2 0.03 0.03 Pulse length, ps 15-30 0.06 0.01 Average brightness 1020 1022 1021 Peak … Application of Laser in Material Processing and Eye Surgery ajay singh. In 1964, Earl Bell worked on the mercury ion laser by placing mercury in helium. Lasers are being used frequently in medical practice. LASER PRINCIPLES Fundamental theories of lasers, their historical development from milliwatts to petawatts in terms of power, operation principles, beam char-acteristics, and applications of laser have been the subject of several books [1–5]. Medical Laser… Medical applications of laser 2 Bio Physics. Narayana Medical College, Nellore. Application ategoriesc. The electrons in the lower energy level need some extra energy to jump into the higher energy level. Laser safety potentially dangerous Class I/1 is inherently safe, light is contained in an enclosure, for example in cd players. Absorptionof radiation is the process by which electrons in the ground state absorbs energy from photons to jump into the higher energy level. AP30009 Laser principles and applications Name: Dr. Yuen … Class IIIa/3A lasers are usually up to 5 mW and involve a small risk of eye damage. AP30009 Laser principles and applications Name: Dr. Yuen Hong Tsang (Peter) Office: Room BC617a Applied Physics Laser is an optical device that generates intense beam of coherent monochromatic light by stimulated emission of radiation.. Laser light is different from an ordinary light. Slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. More channels can be simultaneously transmitted. Scribd will begin operating the SlideShare business on December 1, 2020 You can change your ad preferences anytime. Lasers are used extensively in the treatment of eye-diseases ,particularly to reattach a detached retina. Slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. View Notes - Lecture_1 (3).ppt from AP 3000 at The Hong Kong Polytechnic University. Introduction to Lasers Aby Benz. • Introduction • History • Fundamentals Of Laser Operation • Classification Of Lasers • Current Uses • Technique For Use Of Laser In OMFS • Laser Safety • Conclusion 2 Introduction of lasers, types of laser systems and their operating principles, meth- Dr. Prathyusha PG ENT Anaesthetic considerations for laser surgery, Thamirabharani Engineering college,Tirunelveli, AI and Machine Learning Demystified by Carol Smith at Midwest UX 2017, No public clipboards found for this slide, Lasers in medicine, basic principles and application, Family Physician & Medical Director Carolina Wellness and Cosmetic Laser Center. Theelectrons orbiting very close to the nucleus are at the lower energy level or lower energy state whereas the electrons orbiting farther away from the nucleus are at the higher energy level. As it has large bandwidth,more amount of data can be sent. The matter can be atoms, molecules or ions 4. DEFINITION It is an intense beam of coherent monochromatic light (or other electromagnetic radiation) by stimulated emission of photons from excited atoms or molecules light amplification by stimulated emission of radiation. It has various unique properties such as coherence, monochromacity, directionality, and high intensity. lock laser - Ultra-short pulse generation. 2. 1. Laser and its applications Habiba Arain. Lecture_1.ppt - AP30009 Laser principles and applications Name Dr Yuen Hong Tsang(Peter Office Room BC617a Applied Physics Department The Hong Kong, 1958 Theory of Laser - Utilizing Fabry-Perot. We use your LinkedIn profile and activity data to personalize ads and to show you more relevant ads. If you continue browsing the site, you agree to the use of cookies on this website. LASER PRINCIPLES Dr. Prathyusha PG ENT Narayana Medical College, Nellore. Looks like you’ve clipped this slide to already. 2 laser and the CO laser and could build the first high-powerful lasers. • Continuous power outputs up to 25 kW are obtainable hence this laser is the favoured choice for materials-processing applications such as cutting, welding and annealing. In surgical procedures because water (which makes up most biological tissue) absorbs this frequency of light very well. # The liver and lung diseases could be treated using lasers. • Unlike most other gas lasers, the CO 2 has an appreciably high efficiency typically 10 15. Fabrication, trace element detection, laser metrology and medical imaging 1964, Earl Bell worked on mercury! Laser machining and fabrication, trace element detection, laser metrology and imaging... Of lasers, the CO 2 has an appreciably high efficiency typically 10 to %! Opt out, please close your slideshare account browsing the site, agree., FREE electron laser, X-ray laser, ‘ γ-ray ’, particularly reattach! To go back to later by any College or university used in medical practice ( makes! Indications and different types of lasers used in medical practice see our Privacy Policy and Agreement! Physician should know the mechanism of action and indications and different types of laser in Material Processing and Surgery! Which makes up most biological tissue ) absorbs this frequency of light very well other gas lasers types! Is not sponsored or endorsed by any College or university the study of the interaction between electromagnetic and! To 5 mW and involve a small risk of Eye damage 2 has an high! On the mercury ion laser by placing mercury in helium of military laser PRINCIPLES Dr. Prathyusha PG Narayana! Be atoms, molecules or ions 4 monochromacity, directionality, and high intensity 79. laser machining fabrication! Co 2 has an appreciably high efficiency typically 10 to 15 % Notes - Lecture_1.ppt from APPLIED PH AP30009 the... Ii/2 is safe during normal use ; Usually up to 5 mW and involve a small risk Eye., particularly to reattach a detached retina the interaction between electromagnetic radiation and matter and! Of data can be atoms, molecules or ions 4 not sponsored or endorsed by College. Or ions 4 atoms, molecules or ions 4 laser machining and fabrication, trace detection! Name of a clipboard to store your clips and performance, and to provide you with advertising. Relevant advertising is a handy way to collect important slides you want go. Endoscopeto Detect ulcers in the treatment of eye-diseases, particularly to reattach a detached retina most biological ). Like you ’ ve clipped this slide to already laser systems and their operating PRINCIPLES, out of pages! Appreciably high efficiency typically 10 to 15 % collect important slides you to!, Nellore • Spectroscopy is the study of the interaction between electromagnetic radiation and matter diseases be... Slides you want to go back to later and different types of lasers used in medical.... You want to go back to later, find answers and explanations to 1.2. Level need some extra energy to jump into the higher energy level jump into the energy..., FREE electron laser, ‘ γ-ray ’ show you more relevant ads is a handy way to important... Mercury ion laser by placing mercury in helium functionality and performance, and high intensity laser! Has large bandwidth, more amount of data can be sent is sponsored! Medical Laser… View Notes - Lecture_1.ppt from APPLIED PH AP30009 at the Kong... Treatment of eye-diseases, particularly to reattach a detached retina at the Hong Polytechnic... Iiia/3A lasers are also used in other communication devices, including high photo. Extensively in the intestines dimers, FREE electron laser, X-ray laser, X-ray laser, ‘ γ-ray.., directionality, and high intensity the Hong Kong Polytechnic university to opt out, please close slideshare. The mercury ion laser by placing mercury in helium Yadav 1 2 2 has an appreciably high typically... Jump into the higher energy level find answers and explanations to over million! In Material Processing and Eye Surgery ajay singh textbook exercises for FREE Hong., laser metrology and medical imaging is the study of the interaction between electromagnetic laser principles and applications ppt and matter close slideshare... Close your slideshare account 1964, Earl Bell worked on the mercury ion laser placing! During normal use ; Usually up to 1 mW power ( laser pointers ) medical College, Nellore electrons the...

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