Cherenkov radiation at speeds below the light threshold: phonon-assisted phase matching. Export

@article{citeulike:4144, abstract = {Charged particles traveling through matter at speeds larger than the phase velocity of light in the medium emit Cherenkov radiation. Calculations reveal that a given angle of the radiation conical wavefront is associated with two velocities, one above and one below a certain speed threshold. Emission at subluminal but not superluminal speeds is predicted and verified experimentally for relativistic dipoles generated with an optical method based on subpicosecond pulses moving in a nonlinear medium. The dipolar Cherenkov field, in the range of infrared-active phonons, is identical to that of phonon polaritons produced by impulsive laser excitation.}, address = {The Harrison M. Randall Laboratory of Physics, University of Michigan, Ann Arbor, MI 48109-1120, USA.}, author = {Stevens, T. E. and Wahlstrand, J. K. and Kuhl, J. and Merlin, R.}, citeulike-article-id = {4144}, citeulike-linkout-0 = {http://dx.doi.org/10.1126/science.291.5504.627}, citeulike-linkout-1 = {http://www.sciencemag.org/cgi/content/abstract/291/5504/627}, citeulike-linkout-2 = {http://view.ncbi.nlm.nih.gov/pubmed/11158670}, citeulike-linkout-3 = {http://www.hubmed.org/display.cgi?uids=11158670}, day = {26}, doi = {10.1126/science.291.5504.627}, issn = {0036-8075}, journal = {Science}, keywords = {cherenkov, polariton, ultrafast}, month = {January}, number = {5504}, pages = {627--630}, posted-at = {2004-12-17 17:39:47}, title = {Cherenkov radiation at speeds below the light threshold: phonon-assisted phase matching.}, url = {http://dx.doi.org/10.1126/science.291.5504.627}, volume = {291}, year = {2001} }

TY - JOUR ID - citeulike:4144 L3 - citeulike-article-id:4144 N2 - Charged particles traveling through matter at speeds larger than the phase velocity of light in the medium emit Cherenkov radiation. Calculations reveal that a given angle of the radiation conical wavefront is associated with two velocities, one above and one below a certain speed threshold. Emission at subluminal but not superluminal speeds is predicted and verified experimentally for relativistic dipoles generated with an optical method based on subpicosecond pulses moving in a nonlinear medium. The dipolar Cherenkov field, in the range of infrared-active phonons, is identical to that of phonon polaritons produced by impulsive laser excitation. IS - 5504 JF - Science SN - 0036-8075 AD - The Harrison M. Randall Laboratory of Physics, University of Michigan, Ann Arbor, MI 48109-1120, USA. EP - 630 TI - Cherenkov radiation at speeds below the light threshold: phonon-assisted phase matching. VL - 291 SP - 627 KW - cherenkov KW - polariton KW - ultrafast AU - Stevens, TE AU - Wahlstrand, JK AU - Kuhl, J AU - Merlin, R PY - 2001/01/26/ UR - http://dx.doi.org/10.1126/science.291.5504.627 ER -