Tunable mid-infrared coherent radiation (3.25− 3.7 μm) is generated by quasi-phase-matched difference frequency generation in a multi-grating periodically-poled RbTiOAsO4 crystal. The spontaneous polarization and coercive field of flux-grown RbTiOAsO4 are determined by polarization switching measurements. The nonlinear interaction enables us to explore the optical and nonlinear properties of th...

Salah satu tugas Camat dalam bidang pemerintahan adalah menyelenggarakan kegiatan yang berkaitan erat terhadap pelayanan masyarakat yaitu pembuatan Kartu Keluarga dan Tanda Penduduk, merupakan dokumen warga Negara wajib sebagai baik benar. Permasalahan Penduduk di Kecamatan Dumai Barat Kota seringnya terjadi keluhan keterlambatan KK KTP, selanjutnya tingginya biaya KTP juga persyaratan banyak b...

Based on Constitution no. 25 of 2009 concerning public services are all forms activities in a series fulfilling service needs for every citizen, both goods, services, and administrative provided by services. In the implementation there still problems that cause people's lack satisfaction, as is case management KTP-el which until now cannot be applied according to specified procedure. This study...

An Nd doped ZnO (1-5%) photocatalyst was successfully synthesized via chemical co-precipitation method. The optical property, nature, and morphology of the synthesized nanoparticles were analyzed by UV-Visible, XRD, and FESEM respectively. XRD study reveals that Nd has been effectively incorporated in the ZnO lattice in the lower level dosage; however, the crystalline nature has been distor...

Frequency conversion based on three-wave mixing is a critical nonlinear optic application, extending the frequency range of existing lasers and realizing frequency-transduced detectors in wavelength that lacks an effective detector. Phase matching vital for conversion. The advantages quasi-phase (QPM) over birefringent phase are lack walk-off effect, maximum coefficient, entire transparency win...

The new divalent thulium compound [Tm(BH(4))(2)(DME)(2)] could be prepared by reduction of [Tm(BH(4))(3)(THF)(3)] or from TmI(2) and KBH(4). It was used as a precursor to the divalent [(Tp(tBu,Me))Tm(BH(4))(THF)] by reaction with potassium tris(2-tBu-4-Me)pyrazolylborate (KTp(tBu,Me)). Both Tm(II) compounds were found active as ε-caprolactone polymerisation catalysts.

It was shown experimentally for type II second-harmonic generation in KTP that the family of quadratic spatial solitons exists over a wide range of imbalances for the two fundamental wave inputs. The threshold for soliton formation was measured as a function of both phase mismatch and relative input fraction of the energy in the two fundamental polarizations. Launching unequal fundamental input...

Abstract. The effect of coupling two chaotic Nd:YAG lasers with intracavity KTP crystal for frequency doubling is numerically studied for the case of the laser operating in three longitudinal modes. It is seen that the system goes from chaotic to periodic and then to steady state as the coupling constant is increased. The intensity time series and phase diagrams are drawn and the Lyapunov chara...