[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"detail-sidebar-cat-0-en-105":3,"doc-seo-444595-105":59,"doc-detail-444595-en":130},{"code":4,"msg":5,"data":6},0,"success",[7,13,18,23,28,33,38,43,48,51,55],{"id":8,"doc_module":4,"doc_module_name":9,"category_name":10,"show_sort_weight":11,"slug":12},1,"Document","Story & Novel",90,"story-novel",{"id":14,"doc_module":4,"doc_module_name":9,"category_name":15,"show_sort_weight":16,"slug":17},2,"Literature",80,"literature",{"id":19,"doc_module":4,"doc_module_name":9,"category_name":20,"show_sort_weight":21,"slug":22},4,"Exam",70,"exam",{"id":24,"doc_module":4,"doc_module_name":9,"category_name":25,"show_sort_weight":26,"slug":27},5,"Comic",60,"comic",{"id":29,"doc_module":4,"doc_module_name":9,"category_name":30,"show_sort_weight":31,"slug":32},6,"Technology",50,"technology",{"id":34,"doc_module":4,"doc_module_name":9,"category_name":35,"show_sort_weight":36,"slug":37},7,"Healthcare",40,"healthcare",{"id":39,"doc_module":4,"doc_module_name":9,"category_name":40,"show_sort_weight":41,"slug":42},8,"Research & Report",30,"research-report",{"id":44,"doc_module":4,"doc_module_name":9,"category_name":45,"show_sort_weight":46,"slug":47},9,"Religion & Spirituality",20,"religion-spirituality",{"id":46,"doc_module":4,"doc_module_name":9,"category_name":49,"show_sort_weight":46,"slug":50},"World Cup","world-cup",{"id":52,"doc_module":4,"doc_module_name":9,"category_name":53,"show_sort_weight":52,"slug":54},10,"Lifestyle","lifestyle",{"id":56,"doc_module":4,"doc_module_name":9,"category_name":57,"show_sort_weight":24,"slug":58},19,"General","general",{"code":4,"msg":60,"data":61},"ok",{"site_id":62,"language":63,"slug":64,"title":65,"keywords":66,"description":67,"schema_data":68,"social_meta":123,"head_meta":125,"extra_data":127,"updated_unix":129},105,"en","bursting-the-bubble-speedlimit-report","BURSTING THE BUBBLE SPEEDLIMIT - Report","","Report on advances in bubble memory technology and industrial research highlights from December 1973, describing RCA Physical Electronics Laboratory work on a new bubble memory compound, bismuth-thulium-garnet (BTG). It explains limitations of prior optical and magneto-resistive readout approaches and how BTG enables low-power optical readout using an LED and PIN diode while remaining compatible with integrated circuits. It also announces the I·R 100 awards and related industry coverage and events.",{"@graph":69,"@context":122},[70,84,105],{"@type":71,"itemListElement":72},"BreadcrumbList",[73,77,79,82],{"item":74,"name":75,"@type":76,"position":8},"https://docshare.wps.com","Home","ListItem",{"item":78,"name":9,"@type":76,"position":14},"https://docshare.wps.com/document/",{"item":80,"name":40,"@type":76,"position":81},"https://docshare.wps.com/document/research-report/",3,{"item":83,"name":65,"@type":76,"position":19},"https://docshare.wps.com/document/bursting-the-bubble-speedlimit-report/444595/",{"url":83,"name":65,"@type":85,"image":86,"author":91,"headline":65,"publisher":94,"fileFormat":97,"inLanguage":63,"description":67,"dateModified":98,"datePublished":99,"encodingFormat":97,"isAccessibleForFree":100,"interactionStatistic":101},"DigitalDocument",{"url":87,"@type":88,"width":89,"height":90},"https://docshare.wps.com/thumbnails/bursting-the-bubble-speedlimit-report/444595.png","ImageObject",300,407,{"name":92,"@type":93},"Riley West","Person",{"url":74,"name":95,"@type":96},"DocShare","Organization","application/pdf","2026-10-02","2026-09-29",true,{"@type":102,"interactionType":103,"userInteractionCount":14},"InteractionCounter",{"@type":104},"ViewAction",{"@type":106,"mainEntity":107},"FAQPage",[108,114,118],{"name":109,"@type":110,"acceptedAnswer":111},"What new capability does the BTG bubble memory compound provide?","Question",{"text":112,"@type":113},"The BTG material can increase readout speed by about 100 times compared with earlier bubble memory technologies.","Answer",{"name":115,"@type":110,"acceptedAnswer":116},"Why was optical readout difficult with earlier bubble materials?",{"text":117,"@type":113},"Most bubble materials required very high-powered light sources, such as gas lasers, making the optical approach impractical.",{"name":119,"@type":110,"acceptedAnswer":120},"How will the low-power optical readout system read out stored data?",{"text":121,"@type":113},"Data is read using a low-power solid-state LED as the light source and a PIN diode as the detector, with the arrangement compatible with integrated circuit technology.","https://schema.org",{"og:url":83,"og:type":124,"og:title":65,"og:site_name":95,"og:description":67},"article",{"robots":126,"canonical":83},"index,follow",{"doc_id":128,"site_id":62},444595,1790954885,{"code":4,"msg":5,"data":131},{"doc_id":128,"user_id":132,"nickname":92,"user_avatar":133,"doc_module":4,"category_id":39,"category_name":40,"doc_title":65,"doc_description":67,"doc_content":134,"file_id":135,"file_url":136,"file_type":137,"file_size":138,"view_count":14,"is_deleted":4,"is_public":8,"is_downloadable":8,"audit_status":8,"page_count":44,"language":139,"language_code":63,"site_id":62,"html_lang":63,"table_of_contents":140,"faqs":141,"seo_title":142,"seo_description":67,"update_tm":143,"read_time":144},1099523885074,"https://ap-avatar.wpscdn.com/davatar_9964176cb1d06d4a9deccf72a44ae3dc","Report to Senior Electronics Engineers &Managers  \nDecember 1973Volume 92,Number 6  \n# BURSTING THE BUBBLE SPEEDLIMIT\n\nResearchers at the RCA Physical Electronics Laboratory,Princeton,N.J.,have created a new bubble memory compound,bismuth-thulium-garnet,which can potentially increase by100 times the speed at which such memories are read out ininformation processing systems.Slow speed has been one ofthe major drawbacks with the new technology.  \nIn these memory systems,developed at Be11 Laboratoriesfour years ago,bits of data are stored in the form of tinymagnetic bubbles.In theory,optical readout is the mostobvious approach to the problem,but virtually al1 bubblematerials tried so far have required very high-powered1ight sources,such as gas lasers for readout.This hasmade the optical approach largely imp ractica1.  \nThe alternative—magneto-resistive readout—demands bubbleenlargement which thus reduces the data storage capacity.It also is appreciably slower than optical readout methods.  \nThe new material,with a density of about 160,000 bits/cm²and produced by RCA scientists,Drs.R.Shahbender,A.Akselrad,R.Novak,and D.L.Patterson,solves these prob1ems bya1lowing optical readout to occur while using 1ow-powerlight sources.  \nOptica1 readout basically reles on the Faraday rot ationeffect—the conversion of magnetic domains in magneticmaterials to visual patterns when viewed in polarizedlight.The BTG material has a high Faraday rotation asweil as magnetic bubble properties comparable withprevious materials.  \nThis combination,the RCA researchers conclude,wi11 allowdata stored in the bubble material to be read out usinga low-power solid-state 1ight emitting diode(LED)asthe power source and a PIN diode as the detector.Thewhole arrangement is thus compatible with integratedcircuit technology.  \nCopyright®1973,by Industrial Research,222 s.Riverside Plaza,Chicago,I11.60606.Reproduction prohibited without permission.  \n# FIRST CALL FOR I·R 100 ENTRIES\n\nOften called the\"Nobel Prizes of Industry,\"the 12th annualI·R 100 awards wi11 be given this year to the 100 mostsignificant new technical products and developments.  \nSince the competition was initiated in 1963,many of the  \n1,100 winning entries have become recognized leaders intheir technologica1 fields.From biodegradable plasticsto superhard ailoys,from infrared detectors to breathanalyzers,from reading devices for the blind to newchemica1 and industrial analysis systems,the I·R 100winners have also helped solve many of the nation'stechnical problems.  \nSeveral have even become landmarks in scientific design,such as the first injection laser(developed separatelyby IBM,GE,and GT&E),IBM's gallum arsenide opticaltransistor,Polaroid's instant color film,and RCA's thin-film computer memory.  \nThe competition—sponsored by Industrial Research—annuallyselects the 100 most significant new technilogical productsof the year on the basis of their importance,uniqueness,and usefulness from a technical standpoint.The winningentries are chosen by the Editorial Advisory Board(membersof which are recognized giants in science and technology)and the editors of Industrial Research.  \nLast year,winning products covered the ranges of environmentalprotection,as,for example,Union Carbide's bfodegradableplastics;better instrumentation and measuring techniques,such as Laser Image System's digital 1aser microscope;cost-and fue1-saving industrial processes 11ke GE'spollution-free nuclear waste incinerator;health andsafety products,EDP-related devices,and better materials,to name just a few.  \nOver the years,there has been a steady increase in the amountof press coverage devoted to the winning products.In additionto receiving extensive coverage by national newspapers,TV,radio,and the trade press—I·R 100 awards have been featuredin syndicated films and feature magazines.  \nThe 1974 winners wi11 be honored at an awards banquet andexhibit at the Museum of Science&Industry in Chicago,Sept.17-19.The I·R 100 Conference on T","cbCaibhstxjCW36n","https://ap.wps.com/l/cbCaibhstxjCW36n","pdf",2929077,"English","# BURSTING THE BUBBLE SPEEDLIMIT\n## Bubble memory and readout speed\n## Optical readout limits and magneto-resistive tradeoffs\n## BTG material and device architecture\n# FIRST CALL FOR I·R 100 ENTRIES\n## I·R 100 awards purpose and selection\n## Past winners and impact\n## 1974 entry window and logistics\n# BRIGHT SPECTRUM OF USE FROM FAR-IR LASER\n## Far-infrared waveguide laser device overview","[{\"question\":\"What new capability does the BTG bubble memory compound provide?\",\"answer\":\"The BTG material can increase readout speed by about 100 times compared with earlier bubble memory technologies.\"},{\"question\":\"Why was optical readout difficult with earlier bubble materials?\",\"answer\":\"Most bubble materials required very high-powered light sources, such as gas lasers, making the optical approach impractical.\"},{\"question\":\"How will the low-power optical readout system read out stored data?\",\"answer\":\"Data is read using a low-power solid-state LED as the light source and a PIN diode as the detector, with the arrangement compatible with integrated circuit technology.\"}]","BURSTING THE BUBBLE SPEEDLIMIT - Report | PDF",1790708587,23]