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Continuous‐wave, fourfold upconversion laser
dc.contributor.authorXie, Pingen_US
dc.contributor.authorRand, Stephen C.en_US
dc.date.accessioned2010-05-06T23:33:37Z
dc.date.available2010-05-06T23:33:37Z
dc.date.issued1993-12-06en_US
dc.identifier.citationXie, P.; Rand, S. C. (1993). "Continuous‐wave, fourfold upconversion laser." Applied Physics Letters 63(23): 3125-3127. <http://hdl.handle.net/2027.42/71323>en_US
dc.identifier.urihttps://hdl.handle.net/2027.42/71323
dc.description.abstractWe report a new Er3+:LiYF4 cryogenic upconversion laser pumped by a fourfold upconversion process. Excitation at 1.5 μm results in laser emission at 701.5 nm on a transition with an upper state at nearly four times the pump photon energy. Mechanisms and the concept of cooperative upconversion enhancement are examined.en_US
dc.format.extent3102 bytes
dc.format.extent385043 bytes
dc.format.mimetypetext/plain
dc.format.mimetypeapplication/pdf
dc.publisherThe American Institute of Physicsen_US
dc.rights© The American Institute of Physicsen_US
dc.titleContinuous‐wave, fourfold upconversion laseren_US
dc.typeArticleen_US
dc.subject.hlbsecondlevelPhysicsen_US
dc.subject.hlbtoplevelScienceen_US
dc.description.peerreviewedPeer Revieweden_US
dc.contributor.affiliationumDivision of Applied Physics, 1049 Randall Laboratory, University of Michigan, Ann Arbor, Michigan 48109‐1120en_US
dc.description.bitstreamurlhttp://deepblue.lib.umich.edu/bitstream/2027.42/71323/2/APPLAB-63-23-3125-1.pdf
dc.identifier.doi10.1063/1.110224en_US
dc.identifier.sourceApplied Physics Lettersen_US
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dc.identifier.citedreferenceP. Xie and S. C. Rand, Opt. Lett. 17, 1116 (1992); Opt. Lett. 17, 1822 (1992).en_US
dc.identifier.citedreferenceP. Xie, Ph.D. dissertation, University of Michigan, 1992.en_US
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dc.identifier.citedreferenceP. Xie and S. C. Rand, Opt. Lett. 17, 1198 (1992).en_US
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dc.identifier.citedreferenceP. Xie and S. C. Rand, Appl. Phys. Lett. 60, 3084 (1992).en_US
dc.identifier.citedreferenceIn our earlier publications, unsaturated 4s1/24s1∕2 emission intensity was shown to depend on the cube, not the fourth power, of incident intensity, thereby contradicting a sequential energy transfer model for visible upconversion with λex  =  1.5μmλex=1.5μm in erbium requiring four transfers. Sequential pair processes and sequential multiphoton absorption processes are ruled out not only by our previous work on time dependence of upconversion fluorescence, but also by the excitation spectra which are not convolutions of ground and excited state resonances.en_US
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dc.identifier.citedreferenceA preliminary report of these results was first presented by S. C. R. at the Annual Meeting of the Optical Society of America, Albuquerque, New Mexico, Sept. 20–25 (1992), invited paper MJ2. Results at different output wavelengths have been reported by R. M. Macfarlane, E. A. Whittaker, and W. Lenth, Electron. Lett. 28, 2136 (1992).en_US
dc.owningcollnamePhysics, Department of


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