{"id":651782,"date":"2025-05-09T10:55:54","date_gmt":"2025-05-09T14:55:54","guid":{"rendered":"https:\/\/www.rochester.edu\/newscenter\/?p=651782"},"modified":"2025-05-29T11:46:40","modified_gmt":"2025-05-29T15:46:40","slug":"joseph-eberly-physicist-optical-scientist-remembered-651782","status":"publish","type":"post","link":"https:\/\/www.rochester.edu\/newscenter\/joseph-eberly-physicist-optical-scientist-remembered-651782\/","title":{"rendered":"Pioneering physicist and optical scientist Joseph Eberly remembered"},"content":{"rendered":"<h2>His serendipitous original foray into optics research would help advance the fields of quantum optics and optical physics.<\/h2>\n<figure id=\"attachment_503772\" aria-describedby=\"caption-attachment-503772\" style=\"width: 642px\" class=\"wp-caption alignright\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-503772\" src=\"https:\/\/www.rochester.edu\/newscenter\/wp-content\/uploads\/2021\/11\/Joseph-Eberly.jpg\" alt=\"Joseph Eberly.\" width=\"642\" height=\"966\" srcset=\"https:\/\/www.rochester.edu\/newscenter\/wp-content\/uploads\/2021\/11\/Joseph-Eberly.jpg 642w, https:\/\/www.rochester.edu\/newscenter\/wp-content\/uploads\/2021\/11\/Joseph-Eberly-419x630.jpg 419w\" sizes=\"auto, (max-width: 642px) 100vw, 642px\" \/><figcaption id=\"caption-attachment-503772\" class=\"wp-caption-text\">Joseph Eberly, the Andrew Carnegie Professor of Physics and a professor of optics at Rochester. (University of Rochester photo \/ Brandon Vick)<\/figcaption><\/figure>\n<p>It wasn\u2019t just his six-foot, four-inch height that made<a href=\"https:\/\/www.rochester.edu\/newscenter\/joseph-eberly-2021-honorary-member-of-optica-503732\/\"> Joseph Eberly<\/a>, the Andrew Carnegie Professor of Physics and a professor of optics at the <a href=\"https:\/\/www.rochester.edu\/\">University of Rochester<\/a>, stand out. Eberly, who died this past week at the age of 89, was a pioneering theorist in quantum optics whose ideas reshaped the field.<\/p>\n<p>\u201cWhether it was his seminal books and papers on lasers and quantum optics, his role as the founding editor in chief and architect of <a href=\"https:\/\/opg.optica.org\/oe\/home.cfm\"><em>Optics Express<\/em><\/a>, his memorable moments as an instructor, or simply the camaraderie that he brought to his scientific and leadership circles, Joe left an indelible mark on all he did,\u201d says <a href=\"https:\/\/www.hajim.rochester.edu\/optics\/people\/faculty\/brown_thomas\/index.html\">Thomas Brown<\/a>, the director of the University\u2019s <a href=\"https:\/\/www.hajim.rochester.edu\/optics\/\">Institute of Optics<\/a>, calling him \u201ca giant in the optics community.\u201d<\/p>\n<p>During his prolific career, Eberly published more than 400 scientific journal articles. He also coauthored three monographs and textbooks on lasers and quantum optics and cofounded three international conferences for quantum optical physics.<\/p>\n<p>Eberly\u2019s most notable contributions to his field include the initial description of the spontaneous collapse and revival effect of coherence in the dynamics of a simple quantum model, the first description of Bessel beams, predictions of the recently observed non-spreading localized states of electrons in atoms, and the sudden death effect in quantum entanglement.<\/p>\n<p>The winner of numerous awards and accolades, he served as <a href=\"https:\/\/www.optica.org\/about\/newsroom\/obituaries\/2025\/obituary\/\">president of Optica<\/a>, the international society for optics and photonics, and in 2021 was selected as an Optica <a href=\"https:\/\/managedlists.ur.rochester.edu\/trk\/click?ref=zul360ron_7-4ec9x31e8b2x0657&amp;\">Honorary Member<\/a>, its most distinguished member category. The society\u2019s <a href=\"https:\/\/www.optica.org\/about\/newsroom\/obituaries\/2025\/obituary\/\">recent tribute<\/a> to Eberly specifically highlights his research and leadership in advancing optics and photonics worldwide. He was also a fellow of the <a href=\"https:\/\/www.aps.org\/\">American Physical Society<\/a> and chair of its Division of Laser Science.<\/p>\n<h3><strong>\u2018Optics by accident\u2019<\/strong><\/h3>\n<figure id=\"attachment_651862\" aria-describedby=\"caption-attachment-651862\" style=\"width: 1500px\" class=\"wp-caption alignleft\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-651862\" src=\"https:\/\/www.rochester.edu\/newscenter\/wp-content\/uploads\/2025\/05\/inline-Eberly002.jpg\" alt=\"Black and white archival image of Joseph Eberly leaning against a bookshelf with a nearby textbook that says &quot;LASERS&quot; on the cover.\" width=\"1500\" height=\"2080\" srcset=\"https:\/\/www.rochester.edu\/newscenter\/wp-content\/uploads\/2025\/05\/inline-Eberly002.jpg 1500w, https:\/\/www.rochester.edu\/newscenter\/wp-content\/uploads\/2025\/05\/inline-Eberly002-454x630.jpg 454w, https:\/\/www.rochester.edu\/newscenter\/wp-content\/uploads\/2025\/05\/inline-Eberly002-1477x2048.jpg 1477w, https:\/\/www.rochester.edu\/newscenter\/wp-content\/uploads\/2025\/05\/inline-Eberly002-768x1065.jpg 768w, https:\/\/www.rochester.edu\/newscenter\/wp-content\/uploads\/2025\/05\/inline-Eberly002-1108x1536.jpg 1108w\" sizes=\"auto, (max-width: 1500px) 100vw, 1500px\" \/><figcaption id=\"caption-attachment-651862\" class=\"wp-caption-text\"><strong>A LONG, PROLIFIC CAREER:<\/strong> Eberly published more than 400 scientific journal articles and coauthored three monographs and textbooks on lasers and quantum optics\u2014most of them during his 60 years at Rochester. (University of Rochester Department of Rare Books, Special Collections, and Preservation)<\/figcaption><\/figure>\n<p>Eberly\u2019s career start in optics was serendipitous.<\/p>\n<p>\u201cI got into optics by accident,\u201d Eberly <a href=\"https:\/\/www.youtube.com\/watch?v=axInJwzk5W4\">told the Optical Society of America (now Optica) in 2016<\/a>. \u201cI had done a theoretical PhD thesis and it didn\u2019t have anything directly to do with optics at all.\u201d<\/p>\n<p>After he earned a doctorate in physics from Stanford University in 1962, Eberly landed a research position at the Naval Ordnance Laboratory in Maryland. Upon his arrival, the division director asked him about lasers. \u201cIt seems a little bit silly now, but I didn\u2019t know anything really about lasers,\u201d Eberly said. \u201cExcept that I knew that the guy who was asking the question really wanted to know how was he going to use lasers to shoot down submarines.\u201d<\/p>\n<p>Recalling that moment, Eberly <a href=\"https:\/\/www.youtube.com\/watch?v=axInJwzk5W4\">audibly chuckled on camera<\/a> before nixing the whole idea as \u201ccompletely crazy,\u201d explaining that there\u2019s no wavelength that can work satisfactorily in conductive media like saltwater. Nevertheless, the lab proved his first \u201clittle bit of a push in the direction of optics,\u201d which he followed up by coming to Rochester to work with <a href=\"https:\/\/www.rochester.edu\/newscenter\/emil-wolf-pioneer-optical-physics-dies-323082\/\">Emil Wolf<\/a>, whom Eberly called a \u201cworld guru in optics at that time.\u201d<\/p>\n<p>The faculty triumvirate of Wolf, Eberly, and <a href=\"https:\/\/www.rochester.edu\/news\/printable.php?id=778\">Leonard Mandel<\/a> effectively started the field of quantum optics at the University of Rochester. \u201cThey were world leaders in that,\u201d according Eberly\u2019s close friend and Rochester colleague, <a href=\"https:\/\/www.hajim.rochester.edu\/optics\/people\/faculty\/stroud_carlos\/index.html\">Carlos Stroud<\/a>, a professor emeritus of optics and physics and a historian of optics. Stroud is confident that, besides his scientific acumen, Eberly will be remembered for his strong mentorship.<\/p>\n<p>\u201cAll who worked with him will state unequivocally that he had a huge influence on their lives, particularly the scientific part of it, and was crucial in the development of their careers,\u201d says Stroud. \u201cI could name 50 people who would say that, and that\u2019s not just Americans.\u201d<\/p>\n<p>A notable example of Eberly\u2019s influence? His <a href=\"https:\/\/opg.optica.org\/josab\/abstract.cfm?uri=josab-2-3-486\">work on the ionization of atoms<\/a> by extremely strong laser pulses was used by then-graduate student Donna Strickland to satisfy a Rochester dean\u2019s requirement in the late 1980s that a thesis could not be based on an invention, but instead its use had to answer an intellectual question, recalls Stroud.<\/p>\n<p>She did just fine with Eberly\u2019s model: Nearly three decades later, Strickland, now a professor at the University of Waterloo in Ontario, Canada, and her former graduate advisor, G\u00e9rard Mourou, <a href=\"https:\/\/www.rochester.edu\/newscenter\/rochesters-breakthrough-in-laser-science-earns-nobel-prize-340302\/\">won the 2018 Nobel Prize in Physics<\/a> for the work they undertook at the University\u2019s <a href=\"https:\/\/www.lle.rochester.edu\/\">Laboratory for Laser Energetics (LLE).<\/a><\/p>\n<h3><strong>A teaching career spanning five decades<\/strong><\/h3>\n<p>Stroud and Eberly, who as graduate students had shared the same thesis advisor before arriving on campus, jointly taught an introductory graduate course in quantum optics over the\u00a0course of the half-century that they were both on the Rochester faculty.<\/p>\n<p>\u201cWe had great fun with it,\u201d remembers Stroud. \u201cIt was a privilege to share the lectures. He listened to mine, and I listened to his.\u201d In recognition of his teaching excellence, the University awarded Eberly the <a href=\"https:\/\/managedlists.ur.rochester.edu\/trk\/click?ref=zul360ron_7-4ec9x31e8b3x0657&amp;\">Goergen Award for Distinguished Achievement and Artistry in Undergraduate Teaching<\/a> in 2000.<\/p>\n<figure id=\"attachment_651842\" aria-describedby=\"caption-attachment-651842\" style=\"width: 2000px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-651842\" src=\"https:\/\/www.rochester.edu\/newscenter\/wp-content\/uploads\/2025\/05\/inline-Joseph-Eberly-005.jpg\" alt=\"Black and white archival photo of Joseph Eberly in a shirt and tie leaning against a chalkboard covered in equations. \" width=\"2000\" height=\"1380\" srcset=\"https:\/\/www.rochester.edu\/newscenter\/wp-content\/uploads\/2025\/05\/inline-Joseph-Eberly-005.jpg 2000w, https:\/\/www.rochester.edu\/newscenter\/wp-content\/uploads\/2025\/05\/inline-Joseph-Eberly-005-630x435.jpg 630w, https:\/\/www.rochester.edu\/newscenter\/wp-content\/uploads\/2025\/05\/inline-Joseph-Eberly-005-768x530.jpg 768w, https:\/\/www.rochester.edu\/newscenter\/wp-content\/uploads\/2025\/05\/inline-Joseph-Eberly-005-1536x1060.jpg 1536w, https:\/\/www.rochester.edu\/newscenter\/wp-content\/uploads\/2025\/05\/inline-Joseph-Eberly-005-1920x1325.jpg 1920w\" sizes=\"auto, (max-width: 2000px) 100vw, 2000px\" \/><figcaption id=\"caption-attachment-651842\" class=\"wp-caption-text\"><strong>DEDICATED EDUCATOR: <\/strong>A pioneering theorist in quantum optics, Eberly was still teaching an undergraduate class this spring semester\u2014up until a few days before his death at age 89. (University of Rochester Department of Rare Books, Special Collections, and Preservation)<\/figcaption><\/figure>\n<p style=\"font-weight: 400;\">And Eberly never stopped. Having joined the Rochester physics and astronomy faculty in 1965, he was still teaching an undergraduate class this spring semester\u2014PHYS 143: <a href=\"https:\/\/www.sas.rochester.edu\/pas\/undergraduate\/spring-phy.php\">20th-Century Physics<\/a>\u2014when he took ill a few weeks ago.<\/p>\n<p>\u201cHe gave wonderful lectures,\u201d says Stroud. But he could also be intimidating, his long-time friend allows. \u201cNot just to undergraduates but also to colleagues.\u201d According to Stroud, Eberly held strong opinions and expressed them freely.<\/p>\n<p>Part of his success lay in his intense competitiveness that extended beyond his academic pursuits. In his younger years, the lanky Eberly would play basketball at lunchtime once a week with a group on campus that also included a Rochester basketball coach. To Eberly this was more than a friendly game of pickup. \u201cHe was known for his elbows,\u201d chuckles Stroud.<\/p>\n<p>In an email to faculty, <a href=\"https:\/\/www.sas.rochester.edu\/pas\/people\/faculty\/manly_steven\/index.html\">Steven Manly<\/a><em>, a <\/em>professor of physics and the chair of the <a href=\"https:\/\/www.sas.rochester.edu\/pas\/index.html\">Department of Physics and Astronomy<\/a>, called colleague and friend Eberly a \u201cspectacular\u201d scientist. \u201cThe hole he is leaving behind in our world feels very big to me.\u201d<\/p>\n","protected":false},"excerpt":{"rendered":"<p>His serendipitous original foray into optics research would help advance the fields of quantum optics and optical 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