BEGIN:VCALENDAR VERSION:2.0 PRODID:IEEE vTools.Events//EN CALSCALE:GREGORIAN BEGIN:VTIMEZONE TZID:US/Pacific BEGIN:DAYLIGHT DTSTART:20210314T030000 TZOFFSETFROM:-0800 TZOFFSETTO:-0700 RRULE:FREQ=YEARLY;BYDAY=2SU;BYMONTH=3 TZNAME:PDT END:DAYLIGHT BEGIN:STANDARD DTSTART:20211107T010000 TZOFFSETFROM:-0700 TZOFFSETTO:-0800 RRULE:FREQ=YEARLY;BYDAY=1SU;BYMONTH=11 TZNAME:PST END:STANDARD END:VTIMEZONE BEGIN:VEVENT DTSTAMP:20210705T062008Z UID:8F313975-464A-412B-ACF2-CFB542F1485D DTSTART;TZID=US/Pacific:20210623T180000 DTEND;TZID=US/Pacific:20210623T200000 DESCRIPTION:How Lasers are like Wolves:\n\nA Deep Dive into Laser Performan ce Analysis\, Rate Equations\, and Ion-Ion Interactions\n\nOver the past 6 0 years\, lasers have moved from a laboratory curiosity to useful items in everyday life. About five years after first realizing the laser\, Ted Mai man referred to it as “a solution in search of a problem\;” a 2006 doc umentary about the laser was named after this quote. Today\, lasers are fo und in pointers\, replacing a long stick\; in CD\, DVD\, and Blu-Ray playe rs\; in cars\, used for rangefinding\; in telecommunication systems\; and with a wide variety of scientific and military application. This growth in the capability of the laser has occurred partly due to improvements in te chnology and materials\, and partly through better understanding of the tr ansfer of energy within the laser material. When specific applications app ear\, it may be possible to design a laser to fit the need.\n\nOf course\, if you want a laser for a particular use\, it helps if you can predict an d analyze its performance. A key method of doing so is the use of rate equ ations\, first-order differential equations that tie together the rate of energy transfer within the laser material. These simple equations can be u sed to design and analyze a wide variety of laser capabilities – and can also be used to describe other systems that have related change rates. Th is talk will concentrate on the laser applications.\n\nThere are many acti ve media for lasers. For example\, ion lasers (such as Ar+\, Kr+\, and HeN e) use ionized gases\; the HeNe includes energy transfer among the He+ and Ne+ ions. If ions are added to solid materials\, such as Nd3+ replacing a portion of the Y3+ in Nd:YAG\, the laser is called solid-state\, and can be more compact and more efficient than the ion gas lasers. Other laser fo rms include semiconductor (or diode) lasers\, which use the emission of li ght at an electrical p-n junction to produce a laser beam\; chemical laser s\, which generate energy by producing chemicals that are already in an ex cited state\; non-ionized gas lasers\, which use vibrational and rotationa l modes to produce the beam\; and enough related methods that an entire ta lk would be needed just to list and describe them.\n\nThis talk concentrat es on an introduction to rate equations and their application to laser per formance analysis. Starting from the simplest possible system\, we will ad d more complexity and more energy transitions\, including methods for opti mizing the laser output as desired for various applications. We will discu ss what happens when additional active materials are added to a laser\, wh ich can result in ion-ion interactions.\n\nWe will even describe how laser s are like wolves!\n\nSpeaker(s): Russell Kurtz\, Ph.D.\, \n\nAgenda: \nAG ENDA\n\n06:00pm - 6:15pm PST: Welcome / Introduction\n\n06:15pm - 7:15pm P ST: SoCal Talk\n\n07:15pm - 8:00pm PST: Q/A & more networking\n\nVirtual\, California\, United States\, Virtual: https://events.vtools.ieee.org/m/27 2018 LOCATION:Virtual\, California\, United States\, Virtual: https://events.vto ols.ieee.org/m/272018 ORGANIZER:goradatta@ieee.org SEQUENCE:9 SUMMARY:IEEE SoCal Tech-Talk - How Lasers are like Wolves! URL;VALUE=URI:https://events.vtools.ieee.org/m/272018 X-ALT-DESC:Description: <br /><p><strong><span style="font-size: 18pt\;">Ho w Lasers are like Wolves:</span></strong></p>\n<p><span style="text-decora tion: underline\; font-size: 14pt\;">A Deep Dive into Laser Performance An alysis\, Rate Equations\, and Ion-Ion Interactions</span></p>\n<p>&nbsp\;< /p>\n<p>Over the past 60 years\, lasers have moved from a laboratory curio sity to useful items in everyday life. About five years after first realiz ing the laser\, Ted Maiman referred to it as &ldquo\;a solution in search of a problem\;&rdquo\; a 2006 documentary about the laser was named after this quote. Today\, lasers are found in pointers\, replacing a long stick\ ; in CD\, DVD\, and Blu-Ray players\; in cars\, used for rangefinding\; in telecommunication systems\; and with a wide variety of scientific and mil itary application. This growth in the capability of the laser has occurred partly due to improvements in technology and materials\, and partly throu gh better understanding of the transfer of energy within the laser materia l. When specific applications appear\, it may be possible to design a lase r to fit the need.</p>\n<p>Of course\, if you want a laser for a particula r use\, it helps if you can predict and analyze its performance. A key met hod of doing so is the use of rate equations\, first-order differential eq uations that tie together the rate of energy transfer within the laser mat erial. These simple equations can be used to design and analyze a wide var iety of laser capabilities &ndash\; and can also be used to describe other systems that have related change rates. This talk will concentrate on the laser applications.</p>\n<p>There are many active media for lasers. For e xample\, ion lasers (such as Ar<sup>+</sup>\, Kr<sup>+</sup>\, and HeNe) u se ionized gases\; the HeNe includes energy transfer among the He<sup>+</s up> and Ne<sup>+</sup> ions. If ions are added to solid materials\, such a s Nd<sup>3+</sup> replacing a portion of the Y<sup>3+</sup> in Nd:YAG\, th e laser is called solid-state\, and can be more compact and more efficient than the ion gas lasers. Other laser forms include semiconductor (or diod e) lasers\, which use the emission of light at an electrical p-n junction to produce a laser beam\; chemical lasers\, which generate energy by produ cing chemicals that are already in an excited state\; non-ionized gas lase rs\, which use vibrational and rotational modes to produce the beam\; and enough related methods that an entire talk would be needed just to list an d describe them.</p>\n<p>This talk concentrates on an introduction to rate equations and their application to laser performance analysis. Starting f rom the simplest possible system\, we will add more complexity and more en ergy transitions\, including methods for optimizing the laser output as de sired for various applications. We will discuss what happens when addition al active materials are added to a laser\, which can result in ion-ion int eractions.</p>\n<p>We will even describe how lasers are like wolves!</p><b r /><br />Agenda: <br /><p><span style="font-size: 18pt\;"><strong>AGENDA< /strong></span></p>\n<p>06:00pm - 6:15pm PST: Welcome / Introduction</p>\n <p>06:15pm - 7:15pm PST: SoCal Talk</p>\n<p>07:15pm - 8:00pm PST: Q/A &amp \; more networking&nbsp\;</p> END:VEVENT END:VCALENDAR