which has found a variety of applications.
Joint research, with R. O. James, on solid-state organic-inorganic materials, led to the discovery of polymer-nanoparticle gain media and to the emission of tunable low-divergence homogeneous laser beams from this class of media. In 2005, Duarte and colleagues were the first to demonstrate directional coherent emission from an electrically excited organic semiconductor. These experiments utilized a tandem OLED within an integrated interferometric configuration.
Duarte's work in this area began with the demonstration of narrow-linewidth laser emission using coumarin-tetramethyl dyes which offer high conversion efficiency and wide tunability in the green region of the electromagnetic spectrum.
A spin-off of this research, with applications to the aviation industry, resulted from the discovery that N-slit laser interferometers are very sensitive detectors of clear air turbulence.
Duarte provides a description of quantum optics, almost entirely via Dirac's notation, in his book Quantum Optics for Engineers. In this book he derives the probability amplitude for quantum entanglement,
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In 1983, Duarte traveled to the United States to assume a physics professorship at the University of Alabama. In 1985 he joined the Imaging Research Laboratories, at the Eastman Kodak Company, where he remained until 2006. While at Kodak he was chairman of Lasers '87 and subsequent conferences in this series. Duarte has had a long association with the US Army Missile Command and the US Army Aviation and Missile Command, where he has participated (with R. W. Conrad and T. S. Taylor) in directed energy research.
Duarte, F. J.; Piper, J. A. (1981-06-15). "Prism preexpanded grazing-incidence grating cavity for pulsed dye lasers". Applied Optics. 20 (12). The Optical Society: 2113–6. Bibcode:1981ApOpt..20.2113D. doi:10.1364/ao.20.002113. ISSN 0003-6935. PMID 20332895. /wiki/Bibcode_(identifier)
Duarte, F. J.; Piper, James A. (1984-05-01). "Narrow linewidth, high prf copper laser-pumped dye-laser oscillators". Applied Optics. 23 (9). The Optical Society: 1391–1394. Bibcode:1984ApOpt..23.1391D. doi:10.1364/ao.23.001391. ISSN 0003-6935. PMID 18212837. /wiki/Bibcode_(identifier)
Duarte, F. J. (1985-05-01). "Multiple-prism Littrow and grazing-incidence pulsed CO2 lasers". Applied Optics. 24 (9). The Optical Society: 1244–1245. Bibcode:1985ApOpt..24.1244D. doi:10.1364/ao.24.001244. ISSN 0003-6935. PMID 18223701. /wiki/Bibcode_(identifier)
Duarte, F. J. (1994-06-20). "Solid-state multiple-prism grating dye-laser oscillators". Applied Optics. 33 (18). The Optical Society: 3857–3860. Bibcode:1994ApOpt..33.3857D. doi:10.1364/ao.33.003857. ISSN 0003-6935. PMID 20935726. /wiki/Bibcode_(identifier)
Duarte, F.J.; Piper, J.A. (1982). "Dispersion theory of multiple-prism beam expanders for pulsed dye lasers". Optics Communications. 43 (5). Elsevier BV: 303–307. Bibcode:1982OptCo..43..303D. doi:10.1016/0030-4018(82)90216-4. ISSN 0030-4018. /wiki/Bibcode_(identifier)
Duarte, F. J. (1987). "Generalized multiple-prism dispersion theory for pulse compression in ultrafast dye lasers". Optical and Quantum Electronics. 19 (4). Springer Science and Business Media LLC: 223–229. Bibcode:1987OQEle..19..223D. doi:10.1007/bf02032516. ISSN 0306-8919. S2CID 123209183. /wiki/Bibcode_(identifier)
Duarte, F. J. (2009-04-03). "Generalized multiple-prism dispersion theory for laser pulse compression: higher order phase derivatives". Applied Physics B. 96 (4). Springer Science and Business Media LLC: 809–814. Bibcode:2009ApPhB..96..809D. doi:10.1007/s00340-009-3475-2. ISSN 0946-2171. S2CID 122996664. /wiki/Bibcode_(identifier)
F. J. Duarte and L. W. Hillman (Eds.) (1990). Dye Laser Principles. New York: Academic. ISBN 978-0122227004. 978-0122227004
F. J. Duarte (Ed.) (1995). Tunable Lasers Handbook. New York: Academic. ISBN 978-0122226953. 978-0122226953
F. J. Duarte (2015). Tunable Laser Optics, 2nd Ed. New York: CRC. ISBN 978-1482245295. 978-1482245295
Duarte, F.J.; Piper, J.A. (1982). "Dispersion theory of multiple-prism beam expanders for pulsed dye lasers". Optics Communications. 43 (5). Elsevier BV: 303–307. Bibcode:1982OptCo..43..303D. doi:10.1016/0030-4018(82)90216-4. ISSN 0030-4018. /wiki/Bibcode_(identifier)
Siegner, U; Achermann, M; Keller, U (2001-10-09). "Spatially resolved femtosecond spectroscopy beyond the diffraction limit". Measurement Science and Technology. 12 (11). IOP Publishing: 1847–1857. Bibcode:2001MeScT..12.1847S. doi:10.1088/0957-0233/12/11/313. ISSN 0957-0233. S2CID 250883209. /wiki/Bibcode_(identifier)
Pang, L. Y.; Kintzer, E. S.; Fujimoto, J. G. (1992-11-15). "Ultrashort-pulse generation from high-power diode arrays by using intracavity optical nonlinearities". Optics Letters. 17 (22). The Optical Society: 1599–1601. Bibcode:1992OptL...17.1599P. doi:10.1364/ol.17.001599. ISSN 0146-9592. PMID 19798258. /wiki/Bibcode_(identifier)
Duarte, F. J.; Piper, James A. (1984-05-01). "Narrow linewidth, high prf copper laser-pumped dye-laser oscillators". Applied Optics. 23 (9). The Optical Society: 1391–1394. Bibcode:1984ApOpt..23.1391D. doi:10.1364/ao.23.001391. ISSN 0003-6935. PMID 18212837. /wiki/Bibcode_(identifier)
Duarte, F. J.; Piper, J. A. (1982-08-01). "Comparison of prism-expander and grazing-incidence grating cavities for copper laser pumped dye lasers". Applied Optics. 21 (15). The Optical Society: 2782–6. Bibcode:1982ApOpt..21.2782D. doi:10.1364/ao.21.002782. ISSN 0003-6935. PMID 20396117. /wiki/Bibcode_(identifier)
Singh, Sunita; Dasgupta, K.; Kumar, S.; Manohar, K. G.; Nair, L. G.; Chatterjee, U. K. (1994-06-01). "High-power high-repetition-rate copper-vapor-pumped dye laser". Optical Engineering. 33 (6). SPIE-Intl Soc Optical Eng: 1894–1904. Bibcode:1994OptEn..33.1894S. doi:10.1117/12.168243. ISSN 0091-3286. /wiki/Bibcode_(identifier)
Sugiyama, Akira; Nakayama, T.; Kato, M.; Maruyama, Y.; Arisawa, T. (1996-04-01). "Characteristics of a pressure-tuned single-mode dye laser oscillator pumped by a copper vapor laser". Optical Engineering. 35 (4). SPIE-Intl Soc Optical Eng: 1093–1097. Bibcode:1996OptEn..35.1093S. doi:10.1117/1.600726. ISSN 0091-3286. /wiki/Bibcode_(identifier)
Singh, Nageshwar (2006-10-01). "Influence of optical inhomogeneity in the gain medium on the bandwidth of a high-repetition-rate dye laser pumped by copper vapor laser". Optical Engineering. 45 (10). SPIE-Intl Soc Optical Eng: 104204. Bibcode:2006OptEn..45j4204S. doi:10.1117/1.2363168. ISSN 0091-3286. /wiki/Bibcode_(identifier)
Duarte, F. J.; Piper, J. A. (1982-08-01). "Comparison of prism-expander and grazing-incidence grating cavities for copper laser pumped dye lasers". Applied Optics. 21 (15). The Optical Society: 2782–6. Bibcode:1982ApOpt..21.2782D. doi:10.1364/ao.21.002782. ISSN 0003-6935. PMID 20396117. /wiki/Bibcode_(identifier)
Duarte, F. J. (2010). "Tunable lasers for atomic vapor laser isotope separation: the Australian contribution" (PDF). Australian Physics. 47 (2): 38–40. http://www.tunablelasers.com/F.%20J.%20Duarte%20Australian%20Physics%2047%2038-40%20%282010%29.pdf
Olivares, Ignacio E.; Duarte, Andrés E.; Saravia, Eduardo A.; Duarte, Francisco J. (2002-05-20). "Lithium isotope separation with tunable diode lasers". Applied Optics. 41 (15). The Optical Society: 2973–2977. Bibcode:2002ApOpt..41.2973O. doi:10.1364/ao.41.002973. ISSN 0003-6935. PMID 12027187. /wiki/Bibcode_(identifier)
Duarte, F. J.; Ehrlich, J. J.; Davenport, W. E.; Taylor, T. S. (1990-07-20). "Flashlamp pumped narrow-linewidth dispersive dye laser oscillators: very low amplified spontaneous emission levels and reduction of linewidth instabilities". Applied Optics. 29 (21). The Optical Society: 3176–9. Bibcode:1990ApOpt..29.3176D. doi:10.1364/ao.29.003176. ISSN 0003-6935. PMID 20567393. /wiki/Bibcode_(identifier)
Duarte, F.J.; Davenport, W.E.; Ehrlich, J.J.; Taylor, T.S. (1991). "Ruggedized narrow-linewidth dispersive dye laser oscillator". Optics Communications. 84 (5–6). Elsevier BV: 310–316. Bibcode:1991OptCo..84..310D. doi:10.1016/0030-4018(91)90093-s. ISSN 0030-4018. /wiki/Bibcode_(identifier)
Duarte, F. J. (1994-06-20). "Solid-state multiple-prism grating dye-laser oscillators". Applied Optics. 33 (18). The Optical Society: 3857–3860. Bibcode:1994ApOpt..33.3857D. doi:10.1364/ao.33.003857. ISSN 0003-6935. PMID 20935726. /wiki/Bibcode_(identifier)
Duarte, Francisco J. (1999-10-20). "Multiple-prism grating solid-state dye laser oscillator: optimized architecture". Applied Optics. 38 (30). The Optical Society: 6347–9. Bibcode:1999ApOpt..38.6347D. doi:10.1364/ao.38.006347. ISSN 0003-6935. PMID 18324163. /wiki/Bibcode_(identifier)
Duarte, F. J.; James, R. O. (2003-11-01). "Tunable solid-state lasers incorporating dye-doped, polymer– nanoparticle gain media". Optics Letters. 28 (21). The Optical Society: 2088–90. Bibcode:2003OptL...28.2088D. doi:10.1364/ol.28.002088. ISSN 0146-9592. PMID 14587824. /wiki/Bibcode_(identifier)
Duarte, F. J.; Liao, L. S.; Vaeth, K. M. (2005-11-15). "Coherence characteristics of electrically excited tandem organic light-emitting diodes". Optics Letters. 30 (22). The Optical Society: 3072–4. Bibcode:2005OptL...30.3072D. doi:10.1364/ol.30.003072. ISSN 0146-9592. PMID 16315725. /wiki/Bibcode_(identifier)
Duarte, F. J. (2007-01-26). "Coherent electrically excited organic semiconductors: visibility of interferograms and emission linewidth". Optics Letters. 32 (4). The Optical Society: 412–4. Bibcode:2007OptL...32..412D. doi:10.1364/ol.32.000412. ISSN 0146-9592. PMID 17356670. /wiki/Bibcode_(identifier)
Duarte, F. J.; Liao, L. S.; Vaeth, K. M. (2005-11-15). "Coherence characteristics of electrically excited tandem organic light-emitting diodes". Optics Letters. 30 (22). The Optical Society: 3072–4. Bibcode:2005OptL...30.3072D. doi:10.1364/ol.30.003072. ISSN 0146-9592. PMID 16315725. /wiki/Bibcode_(identifier)
Duarte, F. J. (2007-01-26). "Coherent electrically excited organic semiconductors: visibility of interferograms and emission linewidth". Optics Letters. 32 (4). The Optical Society: 412–4. Bibcode:2007OptL...32..412D. doi:10.1364/ol.32.000412. ISSN 0146-9592. PMID 17356670. /wiki/Bibcode_(identifier)
Chen, C. H.; Fox, J. L.; Duarte, F. J.; Ehrlich, J. J. (1988-02-01). "Lasing characteristics of new coumarin-analog dyes: broadband and narrow-linewidth performance". Applied Optics. 27 (3). The Optical Society: 443–5. Bibcode:1988ApOpt..27..443C. doi:10.1364/ao.27.000443. ISSN 0003-6935. PMID 20523615. /wiki/Bibcode_(identifier)
Duarte, F. J. (1989). "Ray transfer matrix analysis of multiple-prism dye laser oscillators". Optical and Quantum Electronics. 21 (1). Springer Science and Business Media LLC: 47–54. Bibcode:1989OQEle..21...47D. doi:10.1007/bf02199466. ISSN 0306-8919. S2CID 122811020. /wiki/Bibcode_(identifier)
Duarte, F J; Liao, L S; Vaeth, K M; Miller, A M (2006-01-13). "Widely tunable green laser emission using the coumarin 545 tetramethyl dye as the gain medium". Journal of Optics A: Pure and Applied Optics. 8 (2). IOP Publishing: 172–174. Bibcode:2006JOptA...8..172D. doi:10.1088/1464-4258/8/2/010. ISSN 1464-4258. S2CID 120835615. /wiki/Bibcode_(identifier)
F. J. Duarte, Electro-optical interferometric microdensitometer system, US Patent 5255069 (1993).
F. J. Duarte and D. J. Paine, Quantum mechanical description of N-slit interference phenomena, in Proceedings of the International Conference on Lasers '88, R. C. Sze and F. J. Duarte (Eds.) (STS, McLean, Va, 1989) pp. 42-47.
F. J. Duarte, in High Power Dye Lasers (Springer-Verlag, Berlin,1991) Chapter 2.
Duarte, F.J. (1993). "On a generalized interference equation and interferometric measurements". Optics Communications. 103 (1–2). Elsevier BV: 8–14. Bibcode:1993OptCo.103....8D. doi:10.1016/0030-4018(93)90634-h. ISSN 0030-4018. /wiki/Bibcode_(identifier)
Duarte, F.J. (1993). "On a generalized interference equation and interferometric measurements". Optics Communications. 103 (1–2). Elsevier BV: 8–14. Bibcode:1993OptCo.103....8D. doi:10.1016/0030-4018(93)90634-h. ISSN 0030-4018. /wiki/Bibcode_(identifier)
F. J. Duarte (2003). Tunable Laser Optics. New York: Elsevier Academic. ISBN 978-0122226960. 978-0122226960
Duarte, F. J. (1997). "Interference, diffraction, and refraction, via Dirac's notation". American Journal of Physics. 65 (7). American Association of Physics Teachers (AAPT): 637–640. Bibcode:1997AmJPh..65..637D. doi:10.1119/1.18613. ISSN 0002-9505. /wiki/Bibcode_(identifier)
Duarte, F.J. (2005-11-17). "Multiple-prism dispersion equations for positive and negative refraction". Applied Physics B. 82 (1). Springer Science and Business Media LLC: 35–38. doi:10.1007/s00340-005-1996-x. ISSN 0946-2171. S2CID 120462686. /wiki/Doi_(identifier)
Duarte, F. J. (1992-11-20). "Cavity dispersion equation Δλ ≈ Δθ(∂θ/∂λ)−1: a note on its origin". Applied Optics. 31 (33). The Optical Society: 6979–82. doi:10.1364/ao.31.006979. ISSN 0003-6935. PMID 20802556. /wiki/Doi_(identifier)
Duarte, F.J. (2002). "Secure interferometric communications in free space". Optics Communications. 205 (4–6). Elsevier BV: 313–319. Bibcode:2002OptCo.205..313D. doi:10.1016/s0030-4018(02)01384-6. ISSN 0030-4018. /wiki/Bibcode_(identifier)
Duarte, F J; Taylor, T S; Black, A M; Davenport, W E; Varmette, P G (2011-02-03). "N-slit interferometer for secure free-space optical communications: 527 m intra interferometric path length". Journal of Optics. 13 (3). IOP Publishing: 035710. Bibcode:2011JOpt...13c5710D. doi:10.1088/2040-8978/13/3/035710. ISSN 2040-8978. S2CID 6086533. /wiki/Bibcode_(identifier)
Duarte, F.J. (2002). "Secure interferometric communications in free space". Optics Communications. 205 (4–6). Elsevier BV: 313–319. Bibcode:2002OptCo.205..313D. doi:10.1016/s0030-4018(02)01384-6. ISSN 0030-4018. /wiki/Bibcode_(identifier)
Duarte, F J; Taylor, T S; Black, A M; Davenport, W E; Varmette, P G (2011-02-03). "N-slit interferometer for secure free-space optical communications: 527 m intra interferometric path length". Journal of Optics. 13 (3). IOP Publishing: 035710. Bibcode:2011JOpt...13c5710D. doi:10.1088/2040-8978/13/3/035710. ISSN 2040-8978. S2CID 6086533. /wiki/Bibcode_(identifier)
Duarte, F J; Taylor, T S; Black, A M; Davenport, W E; Varmette, P G (2011-02-03). "N-slit interferometer for secure free-space optical communications: 527 m intra interferometric path length". Journal of Optics. 13 (3). IOP Publishing: 035710. Bibcode:2011JOpt...13c5710D. doi:10.1088/2040-8978/13/3/035710. ISSN 2040-8978. S2CID 6086533. /wiki/Bibcode_(identifier)
Duarte, F J; Taylor, T S; Clark, A B; Davenport, W E (2009-11-25). "TheN-slit interferometer: an extended configuration". Journal of Optics. 12 (1). IOP Publishing: 015705. doi:10.1088/2040-8978/12/1/015705. ISSN 2040-8978. S2CID 121521124. /wiki/Doi_(identifier)
F. J. Duarte (2014). Quantum Optics for Engineers. New York: CRC. ISBN 978-1439888537. 978-1439888537
F. J. Duarte (2019). Fundamentals of Quantum Entanglement. Bristol: Institute of Physics. ISBN 978-0750322263. 978-0750322263
Dombey, Norman (2021). "John Clive Ward". Biogr. Mem. Fellows R. Soc. 70 (1). Royal Society: 419-440. doi:10.1098/rsbm.2020.0023. ISSN 0080-4606. S2CID 231938446. https://doi.org/10.1098%2Frsbm.2020.0023
Pryce, M. H. L.; Ward, J. C. (1947). "Angular Correlation Effects with Annihilation Radiation". Nature. 160 (4065): 435. Bibcode:1947Natur.160..435P. doi:10.1038/160435a0. S2CID 4101513. https://doi.org/10.1038%2F160435a0
F. J. Duarte (2014). Quantum Optics for Engineers. New York: CRC. ISBN 978-1439888537. 978-1439888537
F. J. Duarte (2019). Fundamentals of Quantum Entanglement. Bristol: Institute of Physics. ISBN 978-0750322263. 978-0750322263
F. J. Duarte and T. S. Taylor (2021). Quantum Entanglement Engineering and Applications. Bristol: Institute of Physics. ISBN 978-0750334051. 978-0750334051
G. Sheridan, Australian physicist wins Guthrie Medal, The Bulletin 101 (5239) 49-50 (1980). /wiki/Greg_Sheridan
B. Mansfield and M. Hutchinson, Liberality of Opportunity: A history of Macquarie University 1964-1989 (Hale and Iremonger, Sydney, 1992)
F. J. Duarte, Proceedings of the International Conference on Lasers '87 (STS Press, Mc Lean, VA, 1988).
Duarte, F.J.; Davenport, W.E.; Ehrlich, J.J.; Taylor, T.S. (1991). "Ruggedized narrow-linewidth dispersive dye laser oscillator". Optics Communications. 84 (5–6). Elsevier BV: 310–316. Bibcode:1991OptCo..84..310D. doi:10.1016/0030-4018(91)90093-s. ISSN 0030-4018. /wiki/Bibcode_(identifier)
"Francisco J. Duarte". Optica. September 26, 2018. Retrieved December 5, 2021. Duarte was elected Fellow of the Australian Institute of Physics in 1987. In 1981 he joined the OSA, following publication of one of his papers in Applied Optics, and was elected Fellow in 1993. He has received the Engineering Excellence Award (1995), 'for the invention of the N-slit laser interferometer,' and the David Richardson Medal (2016) 'for seminal contributions to the physics and technology of multiple-prism arrays for narrow-linewidth tunable laser oscillators and laser pulse compression' from Optica. https://www.optica.org//en-us/history/biographies/bios/francisco_j_duarte/
"OSA Announces Recipients of Several Awards". Physics Today. 48 (11): 104–105. 1995. Bibcode:1995PhT....48k.104.. doi:10.1063/1.2808274. Retrieved December 4, 2021. There are six recipients of Engineering Excellence Awards from OSA: Francisco J. Duarte, John D. Gonglewski, Gary Guenther, Melvyn H. Kreitzer, Frank Luecke and David G. Voelz. Duarte, a business leader at Eastman Kodak in Rochester, New York, is recognized for "the invention of an electrooptic coherent interferometer for direct applications to imaging diagnostics of transparent surfaces, such as photographic film and film substrates." https://doi.org/10.1063/1.2808274
"Paul F. Forman Team Engineering Excellence Award". OSA.org. Retrieved Dec 13, 2016. http://www.osa.org/en-us/awards_and_grants/awards/award_description/engineeringexcellence/
Photonics Spectra 50 (5), 20 (2016). /wiki/Photonics_Spectra
F. J. Duarte and L. W. Hillman (Eds.) (1990). Dye Laser Principles. New York: Academic. ISBN 978-0122227004. 978-0122227004
F. J. Duarte (2015). Tunable Laser Optics, 2nd Ed. New York: CRC. ISBN 978-1482245295. 978-1482245295
F. J. Duarte (Ed.) (2016). Tunable Laser Applications, 3rd Ed. New York: CRC. ISBN 978-1482261066. 978-1482261066
F. J. Duarte (2019). Fundamentals of Quantum Entanglement. Bristol: Institute of Physics. ISBN 978-0750322263. 978-0750322263
F. J. Duarte and T. S. Taylor (2021). Quantum Entanglement Engineering and Applications. Bristol: Institute of Physics. ISBN 978-0750334051. 978-0750334051