Zobrazeno 1 - 10
of 40
pro vyhledávání: '"Mordechai Katz"'
Publikováno v:
physica status solidi (a). 212:1043-1048
We report the fabrication and characterization of GaN/AlGaN ridge waveguides (WG). The “ridge” design was chosen to ensure low propagation loss. The fabrication process included four steps that could be easily regulated. GaN and AlGaN cladding la
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::65025deb6ec801571eedf03c9408135b
https://doi.org/10.1002/pssa.201431663
https://doi.org/10.1002/pssa.201431663
Publikováno v:
Journal of Physics: Condensed Matter
We introduce a generalization of the adiabatic frequency conversion method for an efficient conversion of ultrashort pulses in the full nonlinear regime. Our analysis takes into account dispersion as well as two-photon processes and Kerr effect, allo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1b85a9586a6ba545206e99d3b87b5a51
https://doi.org/10.1364/cleo_si.2017.sw4m.6
https://doi.org/10.1364/cleo_si.2017.sw4m.6
Autor:
Ladislav Jankovic, Silvia Carrasco, Sergey Polyakov, David Eger, Peter Günter, Lluis Torner, George I. Stegeman, Mordechai Katz, Hongki Kim, Christian Bosshard
Publikováno v:
Journal of Nonlinear Optical Physics & Materials. 12:447-466
Experiments are reviewed on quadratic solution generation, and soliton interactions between each other and with a nonlinear interface in non-critical birefringence phase-matched KNbO 3 and periodically poled KTP. Spatially symmetric and asymmetric pa
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f6f2c5e14efc2fa8c9405eb81199bfcf
https://doi.org/10.1142/s0218863503001572
https://doi.org/10.1142/s0218863503001572
Autor:
Hong-Ki Kim, Silvia Carrasco, George I. Stegeman, Mordechai Katz, Lluis Torner, Ladislav Jankovic, David Eger
Publikováno v:
UPCommons. Portal del coneixement obert de la UPC
Universitat Politècnica de Catalunya (UPC)
Recercat. Dipósit de la Recerca de Catalunya
instname
Universitat Politècnica de Catalunya (UPC)
Recercat. Dipósit de la Recerca de Catalunya
instname
The second harmonic generation (SHG) tuning curves with temperature and angle of incidence were measured in periodically poled KTiOPO4 for narrow fundamental beams at intensities typical of quadratic soliton generation. Mutual self-focusing of the fu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d9240162fe875515925e1b45a95b9672
https://doi.org/10.1063/1.1563302
https://doi.org/10.1063/1.1563302
Publikováno v:
Journal of Applied Physics. 90:53-58
We introduce a technique for measuring the refractive indices of a crystal and apply it to measure the dispersion curve of KTiOPO4. The refractive index evaluation is based on measurement of the Bragg reflection wavelength of periodically segmented w
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fe2d7c8bb297abca4274d40031ab813e
https://doi.org/10.1063/1.1375802
https://doi.org/10.1063/1.1375802
Publikováno v:
Journal of Applied Physics. 83:5973-5977
We report the nondestructive investigation and visualization of periodically poled domains in ferroelectric potassium titanyl phosphate (KTP) crystals using polarization sensitive scanning force microscopy (SFM). Applying an alternating voltage techn
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0b4735635f178f643a54172542d9d659
https://doi.org/10.1063/1.367462
https://doi.org/10.1063/1.367462
Publikováno v:
Optics Communications. 142:265-268
A periodically-poled flux-grown KTP crystal was used for first order quasi-phase-matched (QPM) second harmonic generation of a Nd:YAG laser. The normalized conversion efficiency of the 1 cm long, 0.5 mm thick sample was 1.28% W −1 . A lower limit o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c25142059efab6495901fec543a230c8
https://doi.org/10.1016/s0030-4018(97)00338-6
https://doi.org/10.1016/s0030-4018(97)00338-6
Publikováno v:
Journal of Physics D: Applied Physics. 30:277-282
Characteristics of spontaneous polarization reversal have been studied in detail for the first time in crystals subjected to a pulsed electric field in the range 15 - 70 kV . The switching process has been observed by recording a transient switching
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a7c6729222c89d36c9d984509075ee08
https://doi.org/10.1088/0022-3727/30/2/016
https://doi.org/10.1088/0022-3727/30/2/016
Publikováno v:
Journal of Applied Physics. 74:4298-4302
Periodically segmented waveguides were fabricated by the ion exchange process in KTiOPO4. The waveguides were characterized by measuring the spectra of the transmitted and reflected guided infrared light and of the second‐harmonic‐generated power
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5f2d123a2e4d672089c616fc6390ddd3
https://doi.org/10.1063/1.354393
https://doi.org/10.1063/1.354393
Publikováno v:
Applied Physics Letters. 76:406-408
Frequency doubling of a diode-pumped Nd:YAG laser in 1 and 2 cm long periodically poled KTiOPO4 wafers has been investigated. Up to 60% doubling efficiency has been achieved. The good agreement obtained between measured results and those calculated b
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::566350936ded330c09daef799e4a9c5f
https://doi.org/10.1063/1.125769
https://doi.org/10.1063/1.125769