Results 241 to 250 of about 3,069,996 (290)

Ultra-wideband printed monopole antenna with cardioid-shaped fractal geometry. [PDF]

Sci Rep
Lazović L, Jokanovic B, Rubežić V, Jovanović A.   +3 more
europepmc   +1 more source

Soft-X-ray momentum microscopy of nonlinear magnon interactions. [PDF]

Nat Phys
Wittrock S, Klose C, Perna S, Baumgaertl K, Mucchietto A, Schneider M, Fuchs J, Deinhart V, Karaman T, Grundler D, Eisebitt S, Pfau B, Schick D.   +12 more
europepmc   +1 more source

Hyperparametric solitons in nondegenerate optical parametric oscillators. [PDF]

Nat Commun
Weng H, Ji X, Ali M, Krock EH, Wang L, Kumar V, Guo W, Wan Q, Kippenberg TJ, Donegan JF, Skryabin DV.   +10 more
europepmc   +1 more source

High Numerical Aperture Metalens for the Deep Ultraviolet. [PDF]

Adv Mater
Abdelraouf OAM, Lay CL, Ge H, Zhou Z, Zhang Y, Liu Y, Chen YF, Sim AJ, Wang Z.   +8 more
europepmc   +1 more source

Mixing of counterpropagating signals in a traveling-wave Josephson device. [PDF]

Nat Commun
Praquin M, Giraudo A, Lienhard V, Bouwakdh T, Vanselow A, Leghtas Z, Campagne-Ibarcq P.   +6 more
europepmc   +1 more source

Pump Depletion in Parametric Down-Conversion With Low Pump Energies

Optics Letters, 2020
We report the efficient generation of high-gain parametric down-conversion, including pump depletion, with pump powers as low as 100 $\mu$W (energies $0.1$~$\mu$J/pulse) and conversion efficiencies up to 33\%.
Jeff Lundeen, Maria V. Chekhova, Jefferson Flórez   +2 more
exaly   +3 more sources

Parametric Down Conversion of X-Ray Photons

Journal of Synchrotron Radiation, 2000
Parametric down conversion of X-ray photons in diamond crystals was detected in two experiments, both using the phase-matching scheme first employed in the X-ray regime by Eisenberger & McCall [Phys. Rev. Lett. (1971), 26, 684-688]. The conversion events were detected by a combination of time-correlation spectroscopy and energy discrimination, using Si
Wah-Keat Lee, Bernhard Adams, G Materlik
exaly   +4 more sources

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Spontaneous parametric down-conversion

Journal of Experimental and Theoretical Physics Letters, 2005
Spontaneous parametric down-conversion (SPDC) in media with no inversion center and the use of this phenomenon in the spectroscopy of natural oscillation states of a crystal lattice (i.e., optical phonons) are retrospectively described. We think that the SPDC spectroscopy method is estimated inappropriately and hope to again attract the attention of ...
G. Kh. Kitaeva, A. N. Penin
openaire   +1 more source

Theory of parametric frequency down conversion of light

Physical Review A, 1985
A theoretical study is made of the process in which incident pump photons that interact with a nonlinear medium (such as a crystal lacking inversion symmetry) are spontaneously split into lower-frequency signal and idler photons. The down-converted fields are quantized and described by a continuum of modes, a subset of which interacts with each ...
, Hong, , Mandel
openaire   +2 more sources