Results 31 to 40 of about 297,617 (273)

A New Bound on Excess Frequency Noise in Second Harmonic Generation in PPKTP at the 10^-19 Level [PDF]

, 2012
We report a bound on the relative frequency fluctuations in nonlinear second harmonic generation. A 1064nm Nd:YAG laser is used to read out the phase of a Mach-Zehnder interferometer while PPKTP, a nonlinear crystal, is placed in each arm to generate ...
Armstrong, Coddington, D. Yeaton-Massey, Fortier, Grosche, Heinert, Khalili, Leonhardt, Levin, Ma, Mullavey, R. X. Adhikari, Rosenband, Stalnaker, Stenger, Terra, Willke, Zang   +17 more
core   +2 more sources

Second harmonic generation in SiC polytypes

, 1997
LMTO calculations are presented for the frequency dependent second harmonic generation (SHG) in the polytypes 2H, 4H, 6H, 15R and 3C of SiC. All independent tensor components are calculated.
A. P. Verma, B. F. Levine, B. Wenzien, Benjamin Segall, C. Aversa, D. A. Kleinman, D. A. Kleinman, D. A. Roberts, E. Biedermann, G. L. Harris, G. S. Zhdanov, J. Chen, J. Chen, J. E. Sipe, J. L. P. Hughes, J. L. P. Hughes, K. Kim, K. Kim, L. Hedin, L. Hedin, L. Patrick, M. Cardona, M. Rohlfing, O. K. Andersen, O. K. Andersen, P. M. Lundquist, P. M. Lundquist, P. M. Lundquist, R. C. Miller, R. C. Miller, R. M. Martin, S. Logothetidis, S. N. Rashkeev, S. Singh, Sergey N. Rashkeev, V. I. Gavrilenko, W. G. Aulbur, W. H. Backes, W. H. Backes, W. J. Choyke, W. Kohn, W. R. L. Lambrecht, W. R. L. Lambrecht, W. R. L. Lambrecht, W. R. L. Lambrecht, W. van Haeringen, Walter R. L. Lambrecht, Z. H. Levine, Z. H. Levine, Z. H. Levine, Z. Ikonić   +50 more
core   +1 more source

Entanglement properties of third harmonic generation via direct and cascaded parametric processes [PDF]

, 2017
We compare the bipartite entanglement and EPR-steering properties of the two different schemes which produce third harmonic optical fields from an input field at the fundamental frequency. The first scheme uses second harmonic cascaded with sum-frequency
Olsen, M. K.
core   +2 more sources

Second-harmonic generation in vortex-induced waveguides

, 2003
We study the second-harmonic generation and localization of light in a reconfigurable waveguide induced by an optical vortex soliton in a defocusing Kerr medium.
Andreas H. Carlsson, Bang, Carlsson, de la Fuente, Elena Ostrovskaya, Guo, José R. Salgueiro, Kang, Lan, Lan, Law, Luther-Davies, Morin, Swartzlander, Yuri Kivshar   +14 more
core   +2 more sources

Surface Enhanced Second Harmonic Generation from Macrocycle, Catenane, and Rotaxane Thin Films: Experiments and Theory [PDF]

, 2006
Surface enhanced second harmonic generation (SE SHG) experiments on molecular structures, macrocycles, catenanes, and rotaxanes, deposited as monolayers and multilayers by vacuum sublimation on silver, are reported.
Allinger N. L., Amabilino D. B., Bermudez V., Choy M., Dudek M. J., Fustin C.-A., Fustin C.-A., Gase T., Gase T., Gatti F. G., Gellert M., Jalkanen J. P., Johnston A. G., Johnston A. G., Johnston A. G., Kundrot C. J., Lane A. S., Leigh D. A., Mendoza S. M., Murakami H., Ponder J. W., Rappe A. K., Raymo F. M., Rocchia W., Rocchia W. S., Sauvage J.-P., Sutton A. P., Wasserman E., Whelan C. M., Whelan C. M.   +29 more
core   +1 more source

Interferometric second harmonic generation microscopy

Optics Express, 2004
We describe a novel second harmonic generation (SHG) microscope that employs heterodyne detection by interfering the epi directed SHG from a sample with SHG from a reference crystal. In addition, the microscope provides complementary reflectance information based on optical coherence microscopy (OCM).
Siavash, Yazdanfar, Lily, Laiho, Peter, So   +2 more
openaire   +2 more sources

Second-harmonic generation in graded metallic films

, 2005
We study the effective second-harmonic generation (SHG) susceptibility in graded metallic films by invoking the local field effects exactly, and further numerically demonstrate that the graded metallic films can serve as a novel optical material for ...
Chiang, Fischer, Grüll, Hui, Hui, Hui, J. P. Huang, K. W. Yu, Lu, Neeves, Pettinger, Pezzetta, Purvinis   +12 more
core   +1 more source

Strong-field-assisted x-ray second harmonic generation

Physical Review Research
We theoretically demonstrate x-ray second harmonic generation (SHG) with strong-field-driven high harmonic generation (HHG) from core electrons in gas-phase atoms, highlighting its potential as a powerful spectroscopic tool for studying atomic and ...
Xinhua Xie (谢新华)
doaj   +1 more source

Frequency comb generation threshold via second-harmonic excitation in χ(2) optical microresonators

APL Photonics, 2020
We investigate the threshold of χ(2) frequency comb generation in lithium niobate whispering gallery microresonators theoretically and experimentally. When generating a frequency comb via second-harmonic excitation, also commonly known as second-harmonic
Jan Szabados, Boris Sturman, Ingo Breunig   +2 more
doaj   +1 more source

Efficient Enhancement of Second Harmonic Generation via Noninvasive Modulation

Applied Sciences, 2022
Second harmonic generation has been widely applied in various fields. High second harmonic intensity can facilitate optical imaging, signal sensing, and detection. Thus, enhancing the intensity of the second harmonic is a significant work.
Liqing Wu, Weiru Fan, Ziyang Chen, Jixiong Pu   +3 more
doaj   +1 more source