BEGIN:VCALENDAR VERSION:2.0 PRODID:IEEE vTools.Events//EN CALSCALE:GREGORIAN BEGIN:VTIMEZONE TZID:America/Los_Angeles BEGIN:DAYLIGHT DTSTART:20240310T030000 TZOFFSETFROM:-0800 TZOFFSETTO:-0700 RRULE:FREQ=YEARLY;BYDAY=2SU;BYMONTH=3 TZNAME:PDT END:DAYLIGHT BEGIN:STANDARD DTSTART:20231105T010000 TZOFFSETFROM:-0700 TZOFFSETTO:-0800 RRULE:FREQ=YEARLY;BYDAY=1SU;BYMONTH=11 TZNAME:PST END:STANDARD END:VTIMEZONE BEGIN:VEVENT DTSTAMP:20240123T212857Z UID:EE6BED9D-CA13-43DF-8CD8-D277F3FBB5D2 DTSTART;TZID=America/Los_Angeles:20240119T190000 DTEND;TZID=America/Los_Angeles:20240119T203000 DESCRIPTION:This presentation is about the very recent James Webb Space Tel escope (JWST). Its major science objectives include: 1) Detect the first s tars to ever emit light\, 2) Show us how galaxies and stars were formed in the early universe and 3) Study planets orbiting other stars outside our solar system. It was successfully launched in 2021. It reached its orbital parking space at L2\, a million miles away\, slowly cooled down per plan\ , and completed all its commissioning tasks. It has been in operation sinc e July 2022. Unlike the Hubble telescope which is taking images in the vis ible portion of the spectrum\, this one takes images in the Near Infra Red (NIR) and the Mid Infra Red (MIR) portions of the spectrum. Infrared ligh t is important to astronomy in three major ways.\n\nFirst\, some objects a re just better observed in infrared wavelengths. Some bodies of matter tha t are cool and do not emit much energy or visible brightness.\n\nVisible l ight’s short\, tight wavelengths are prone to bouncing off dust particle s\, making it hard for visible light to escape from a dense nebula or prot oplanetary cloud of gas and dust. The longer wavelengths of infrared light slip past dust more easily\, and therefore instruments that detect infrar ed light—like those on Webb—are able to see the objects that emitted t hat light inside a dusty cloud. Low-energy brown dwarfs and young protosta rs forming in the midst of a nebula are among the difficult-to-observe cos mic objects that Webb can study. In this way\, Webb will reveal a “hidde n” universe of star and planet formation that is literally not visible.\ n\nFinally\, infrared light holds clues to many mysteries from the beginni ng of everything\, the first stars and galaxies in the early universe\, af ter the big bang. Through a process called cosmological redshifting\, ligh t is stretched as the universe expands\, so light from stars that is emitt ed in shorter ultraviolet and visible wavelengths is stretched to the long er wavelengths of infrared light.\n\nObservation of these early days in th e universe’s history will shed light on perplexing questions of dark mat ter and energy\, black holes\, galaxy evolution over time\, what the first stars were like\, and how we arrived at the universe we experience today. \n\nOur guest speaker is Bruce Steakley\, who was the NIRCam Chief Systems Engineer and Program Manager. The NIR Cam has ten mercury-cadmium-telluri de (HgCdTe) detector arrays. These are analogous to the silicon sensors fo und in ordinary digital cameras. The NIRCam is a science instrument but al so an Optical Telescope Element wavefront sensor. It must be cooled to nea r absolute zero (K) temperature in order to eliminate most of the backgrou nd noise benerated in the detectors. Fortunately that is easy to do in spa ce.\n\nBruce is now retired and he will take us through major observatory and NIRCam driving requirements with a deep dive into building NIRCam. Alo ng the way\, the talented teams faced significant challenges\, some expect ed and some not. Good plans\, ingenuity\, attention to detail\, perseveran ce\, bad luck\, and good luck all are part of the development story that l ed to its exceptional success. JWST images and science data are enabling a new era in astronomy. The focus of this talk will be primarily the engine ering and development of the sensor sytem and not on the finished images t aken from this telescope\n\nMeanwhile\, work is already underway for anoth er leap in technology and system capability beyond JWST. If you’re inter ested in an authoritative site on the JWST deployment timeline\, its curre nt status\, and recent images\; check this out: https://webb.nasa.gov/cont ent/webbLaunch/whereIsWebb.html\n\n####################################### #######################################\n\nThis event is exclusively for i n-person attendance\, and walk-ins cannot be accommodated due to limited r oom capacity. The specific address will be provided to those who have regi stered up to the morning of the event. We will attempt to make a simultane ous broadcast on zoom but we are not vertain it will work well. We will se nd the zoom link to everyone who registers.\n\nParticipation in the event entails a fee of $5 for each adult (18+) who wishes to avail themselves of the dinner provided. Additionally\, attendees have the option to bring up to three children (14-17 years old) to the dinner at no extra cost. Regis tration for the presentation-only segment is free. (Please do not bring ch ildren younger than 14).\n\nAgenda:\n\nDinner: 6-7pm (registration require d\, $5 per adult. If you plan to bring children\, kindly register them as well but they are free.\n\nPresentation: 7:00pm - 8:30pm (registration is required\, but if no meal is needed then admission will be free)\n\nCo-spo nsored by: Life Members Affinity Group of the SCV Section\n\nSpeaker(s): B ruce Steakley \n\nAgenda: \nDinner: Jan 19 6:00pm to 7:00pm\n\nPresentatio n: 7:00pm to 8:30pm\n\nSunnyvale\, California\, United States\, Virtual: h ttps://events.vtools.ieee.org/m/389814 LOCATION:Sunnyvale\, California\, United States\, Virtual: https://events.v tools.ieee.org/m/389814 ORGANIZER:stliu.photonics@gmail.com SEQUENCE:85 SUMMARY:A Brief History of Building a Time Machine: Developing NIRCam on th e James Webb Space Telescope and Recent Findings URL;VALUE=URI:https://events.vtools.ieee.org/m/389814 X-ALT-DESC:Description: <br /><p>This presentation is about the very recent James Webb Space Telescope (JWST). &nbsp\;Its major science objectives in clude: 1) Detect the first stars to ever emit light\, 2) Show us how galax ies and stars were formed in the early universe and 3) Study planets orbit ing other stars outside our solar system. &nbsp\;It was successfully launc hed in 2021. It reached its orbital parking space at L2\, a million miles away\, slowly cooled down per plan\, and completed all its commissioning t asks.&nbsp\; It has been in operation since July 2022.&nbsp\; Unlike the H ubble telescope which is taking images in the visible portion of the spect rum\, this one takes images in the Near Infra Red (NIR) and the Mid Infra Red (MIR) portions of the spectrum. Infrared light is important to astrono my in three major ways.</p>\n<p>First\, some objects are just better obser ved in infrared wavelengths. Some bodies of matter that are cool and do no t emit much energy or visible brightness.</p>\n<p>Visible light&rsquo\;s s hort\, tight wavelengths are prone to bouncing off dust particles\, making it hard for visible light to escape from a dense nebula or protoplanetary cloud of gas and dust. The longer wavelengths of infrared light slip past dust more easily\, and therefore instruments that detect infrared light&m dash\;like those on Webb&mdash\;are able to see the objects that emitted t hat light inside a dusty cloud. Low-energy brown dwarfs and young protosta rs forming in the midst of a nebula are among the difficult-to-observe cos mic objects that Webb can study. In this way\, Webb will reveal a &ldquo\; hidden&rdquo\; universe of star and planet formation that is literally not visible.</p>\n<p>Finally\, infrared light holds clues to many mysteries f rom the beginning of everything\, the first stars and galaxies in the earl y universe\, after the big bang. Through a process called cosmological red shifting\, light is stretched as the universe expands\, so light from star s that is emitted in shorter ultraviolet and visible wavelengths is stretc hed to the longer wavelengths of infrared light.</p>\n<p>Observation of th ese early days in the universe&rsquo\;s history will shed light on perplex ing questions of dark matter and energy\, black holes\, galaxy evolution o ver time\, what the first stars were like\, and how we arrived at the univ erse we experience today.</p>\n<p>Our guest speaker is Bruce Steakley\, wh o was the&nbsp\; NIRCam Chief Systems Engineer and Program Manager. The NI R Cam has ten mercury-cadmium-telluride (HgCdTe) detector arrays. These ar e analogous to the silicon sensors found in ordinary digital cameras. The NIRCam is a science instrument but also an Optical Telescope Element wavef ront sensor. It must be cooled to near absolute zero (K) temperature&nbsp\ ; in order to eliminate most of the background noise benerated in the dete ctors. Fortunately that is easy to do in space.</p>\n<p>Bruce is now retir ed and he will take us through major observatory and NIRCam driving requir ements with a deep dive into building NIRCam.&nbsp\; Along the way\, the t alented teams faced significant challenges\, some expected and some not. G ood plans\, ingenuity\, attention to detail\, perseverance\, bad luck\, an d good luck all are part of the development story that led to its exceptio nal success.&nbsp\; JWST images and science data are enabling a new era in astronomy.&nbsp\; The focus of this talk will be primarily the engineerin g and development of the sensor sytem and not on the finished images taken from this telescope</p>\n<p>Meanwhile\, work is already underway for anot her leap in technology and system capability beyond JWST.&nbsp\; If you&rs quo\;re interested in an authoritative site on the JWST deployment timelin e\, its current status\, and recent images\; check this out:&nbsp\; <stron g><a href="https://webb.nasa.gov/content/webbLaunch/whereIsWebb.html">http s://webb.nasa.gov/content/webbLaunch/whereIsWebb.html</a></strong></p>\n<p >&nbsp\;</p>\n<p>######################################################### #####################</p>\n<p>This event is exclusively for in-person atte ndance\, and walk-ins cannot be accommodated due to limited room capacity. <strong><em>The specific address will be provided to those who have regis tered up&nbsp\; to the morning of the event. </em>We will attempt to make a simultaneous broadcast on zoom but we are not vertain it will work well. We will send the zoom link to everyone who registers.<em><br /></em></str ong></p>\n<p>Participation in the event entails a fee of $5 for each adult (18+) who wishes to avail themselves of the dinner provided. Additionally \, attendees have the option to bring up to three children (14-17 years ol d) to the dinner at no extra cost. Registration for the presentation-only segment is free. (Please do not bring children younger than 14).</p>\n<p>< span style="font-size: 14pt\;"><em><strong>Agenda:</strong></em></span></p >\n<p>Dinner: 6-7pm (registration required\, $5 per adult. If you plan to bring children\, kindly register them as well but they are free.</p>\n<p>P resentation: 7:00pm - 8:30pm (registration is required\, but if no meal is needed then admission will be free)</p><br /><br />Agenda: <br /><p>Dinne r:&nbsp\; Jan 19&nbsp\; 6:00pm to 7:00pm</p>\n<p>Presentation:&nbsp\; 7:00 pm to 8:30pm</p>\n<p>&nbsp\;</p> END:VEVENT END:VCALENDAR