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| field = [[Physics]]
| work_institution = [[Bell Labs]]
| alma_mater = [[Columbia University]]<br />[[Massachusetts Institute of Technology]]
| doctoral_advisor = [[Charles Hard Townes]]
}}
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==Biography and personal life==
J. P. Gordon was born in [[Brooklyn]], [[New York (state)|New York]], on March 20, 1928, and was raised in [[Forest Hills, Queens]] and [[Scarsdale, New York]].<ref name=NYTObit/> His father, Robert S. Gordon was a lawyer and worked as VP and General Counsel for National Dairy, now Kraftco. Gordon attended Scarsdale High School and [[Phillips Exeter Academy]] (Class of 1945). In 1949, he received a bachelor's degree from the [[Massachusetts Institute of Technology]] (MIT) and joined the physics department of [[Columbia University]] as a graduate student. He received his
In 1960, he married Susanna Bland Waldner, a former Bell-Labs computer programmer. The couple had three children: James Jr., Susanna, and Sara. A resident of [[Rumson, New Jersey]], he died aged 85 on June 21, 2013, at a hospital in New York City due to cancer.<ref name=NYTObit>Martin, Douglas. [https://www.nytimes.com/2013/07/28/science/james-gordon-dies-at-85-work-paved-way-for-laser.html?pagewanted=all "James Gordon Dies at 85; Work Paved Way for Laser"], ''[[The New York Times]]'', July 27, 2013. Accessed July 29, 2013.</ref><ref name=death>{{cite news|url=http://www.app.com/article/20130625/NJNEWS/306250135/James-P-Gordon-noted-physicist-dead-at-85?nclick_check=1|title=James P. Gordon, noted physicist, dead at 85|publisher=APP|date=Jun 26, 2013}}</ref>
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===Lasers and resonators===
[[Image:
During his doctoral training period with C.H. Townes at Columbia University, Gordon worked on the design, analysis and construction of the maser.<ref name="ref4"/> This work produced the first prototype of what later evolved into the [[laser]] (originally called "optical maser") and became one of the most important workhorses in 20th-century technology.<ref name="ref5"/> Gordon's later contribution to lasers included the analysis of the confocal, or curved mirror laser resonator. He joined with G. Boyd, to introduce the concept of Hermite-Gaussian modes into resonator study,<ref name="ref6"/> influencing all subsequent research conducted on laser resonators. In his work with R.L. Fork and O.E. Martinez in 1994, a mechanism for generating tunable negative dispersion using pairs of prisms was proposed. This invention was instrumental in achieving ultra-short laser pulses, critical in many applications using laser technology.<ref name="ref7"/>
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===Atom diffusion===
Having joined [[Arthur Ashkin]]'s efforts of manipulating microparticles with laser beams, Gordon wrote the first theory describing radiation forces and momenta in dielectric media.<ref name="ref12"/> Later, jointly with Ashkin, he modeled the motion of atoms in a radiation trap.<ref name="ref125"/> This work together with Ashkin's experiments, was the basis for what later developed into the fields of [[Magneto-optical trap|atom trapping]] and [[optical tweezers]]. Ashkin's work on optical tweezers was recognized with the Nobel Prize in Physics awarded to him in 2018.
===Solitons and optical communications===
Much of Gordon's later career focused on the study of soliton transmission in optical fibers. He reported the first experimental observation of solitons in optical fibers in a paper co-authored with R.H. Stolen and [[Linn F. Mollenauer|L.F. Mollenauer]].<ref name="ref13"/> In a seminal 1986 paper, Gordon explained and formulated the theory of the soliton self-frequency shift that had been observed prior to that in experiments.<ref name="ref14"/> In the same year, together with Prof. [[H. A. Haus]] of the Massachusetts Institute of Technology (MIT), he predicted and quantified the timing-jitter effect resulting from the coupling between solitons and optical amplification noise in amplified optical systems.<ref name="ref15"/> This effect was shown to be one of the most fundamental factors in determining the performance of soliton systems and it is now broadly recognized as the Gordon-Haus effect.<ref name="ref16"/> In 1990, Gordon and Mollenauer predicted and analyzed the enhancement of phase-noise as a result of the optical nonlinearity of fibers.<ref name="ref16.5"/> This phenomenon, often referred to as the Gordon-Mollenauer effect, was a key factor in preventing the use of solitons in coherent optical communications.
Gordon's most recent major contribution to the field of fiber-optic communications was in the mathematical formulation of the phenomenon of [[polarization mode dispersion]] (PMD), which constitutes one of the most important factors in determining the performance of fiber-optic systems. His paper, coauthored with [[Herwig Kogelnik|H. Kogelnik]], appeared in the Proceedings of the National Academy of Sciences, and the formulation presented therein became standard in many of the subsequent texts dealing with polarization phenomena in optical fibers.<ref name="ref17"/>
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* Fellow of the [[Optical Society of America]] (OSA)
* Life fellow of [[IEEE]]
* [[Charles Hard Townes Award]] (OSA, 1981)<ref>{{cite web | url=http://www.osa.org/Awards_and_Grants/Awards/Award_Description/charlestownes/ | title=Charles Hard Townes Medal | Optica }}</ref>
* [[National Academy of Engineering]] ([[List of members of the National Academy of Engineering|member]] since 1985)
* [[National Academy of Sciences]] ([[List of members of the National Academy of Sciences (Engineering sciences)|member]] since 1988)
* [[Max Born Award]] (OSA, 1991)<ref>{{cite web | url=http://www.osa.org/Awards_and_Grants/Awards/Award_Description/maxborn/ | title=Max Born Award | Optica }}</ref>
* [[Willis E. Lamb Award]] for laser science and quantum optics (2001)<ref>{{Cite web|url=http://www.lambaward.org/2001/|title=The 2001 Willis e. Lamb Award for Laser Science and Quantum Optics}}</ref>
* [[
* Honorary Member of the Optical Society (OSA, 2011)<ref>{{cite web | url=http://www.osa.org/Membership/Member_Categories/Honorary/ | title=Honorary Members | Optica }}</ref>
==References==
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<ref name="ref1000">[https://arxiv.org/abs/1407.1326\ Communication and Measurement: J.P. Gordon, arXiv:1407.1326 [quant-ph] (2014).]</ref>
<ref name="ref12">{{cite journal | last=Gordon | first=James P. | title=Radiation Forces and Momenta in Dielectric Media | journal=Physical Review A | publisher=American Physical Society (APS) | volume=8 | issue=1 | date=1973-07-01 | issn=0556-2791 | doi=10.1103/physreva.8.14 | pages=14–21| bibcode=1973PhRvA...8...14G }}</ref>
<ref name="ref125">{{cite journal | last1=Gordon | first1=J. P. | last2=Ashkin | first2=A. | title=Motion of atoms in a radiation trap | journal=Physical Review A | publisher=American Physical Society (APS) | volume=21 | issue=5 | date=1980-05-01 | issn=0556-2791 | doi=10.1103/physreva.21.1606 | pages=1606–1617| bibcode=1980PhRvA..21.1606G |doi-access=
<ref name="ref13">{{cite journal | last1=Mollenauer | first1=L. F. | last2=Stolen | first2=R. H. | last3=Gordon | first3=J. P. | title=Experimental Observation of Picosecond Pulse Narrowing and Solitons in Optical Fibers | journal=Physical Review Letters | publisher=American Physical Society (APS) | volume=45 | issue=13 | date=1980-09-29 | issn=0031-9007 | doi=10.1103/physrevlett.45.1095 | pages=1095–1098| bibcode=1980PhRvL..45.1095M }}</ref>
<ref name="ref14">{{cite journal | last=Gordon | first=J. P. | title=Theory of the soliton self-frequency shift | journal=Optics Letters | publisher=The Optical Society | volume=11 | issue=10 | date=1986-10-01 | pages=662–4 | issn=0146-9592 | doi=10.1364/ol.11.000662 | pmid=19738721 | bibcode=1986OptL...11..662G }}</ref>
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[[Category:1928 births]]
[[Category:2013 deaths]]
[[Category:Deaths from cancer in New York (state)]]
[[Category:Columbia
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[[Category:
[[Category:Laser researchers]]
[[Category:Fellows of
[[Category:Massachusetts Institute of Technology alumni]]
[[Category:Members of the United States National Academy of Engineering]]
[[Category:Members of the United States National Academy of Sciences]]
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[[Category:People from Forest Hills, Queens]]
[[Category:People from Rumson, New Jersey]]
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