A5101715218- Solid State Laser Technologies
- Photorefractive and Nonlinear Optics
- Advanced Fiber Laser Technologies
- Metamaterials and Metasurfaces Applications
- Laser Design and Applications
- Semiconductor Lasers and Optical Devices
- Millimeter-Wave Propagation and Modeling
- Terahertz technology and applications
Beijing Drainage Group (China)
2023
Changchun University of Science and Technology
2009-2011
We report for the first time a coherent radiation at 488 nm by intracavity sum-frequency generation of 914 Nd:YVO4 laser and 1047 Nd:YLF (Nd:YLiF4) laser. Blue is obtained using doubly folded cavity, type-I critical phase matching LBO (LiB3O5) crystal mixing. With total pump power 32.2 W (13.4 18.8 laser), TEM00 mode blue 1.23 obtained. The stability in 30 min better than 2.8%.
We report a laser architecture to obtain continuous-wave blue radiation at 488 nm. A 808 nm diodepumped the Nd:YVO4 crystal emitting 914 part of pump power was then absorbed by crystal. The remaining used Nd:YLF 1047 Intracavity sum-frequency mixing and realized in LBO reach radiation. obtained output 514 mW with diode 19.6 W
We present for the first time a Nd:YVO4 laser at 1085 nm intracavity pumped 914 by laser. obtained powers of 57 W and 62 nm. Using type-I critical phase-matching LiB3O5 (LBO) crystal, cyan 496 is sum-frequency mixing. The maximum output power 142 mW when an incident pump 19.6 used.
We report for the first time an efficient continuous wave (CW) laser emission at 561 nm by sum-frequency mixing of fundamental and first-Stokes fields generated within Nd:KGd(WO4)2 self-Raman laser. Intracavity with LiB3O5 (LBO) nonlinear crystal yielded 570 mW visible yellow-green emission; output power stability over 4 h is better than 4.6%. The beam quality M2 factors are 1.54 2.13 in both horizontal vertical dimensions respectively.
We present an Yb:KY(WO4)2 (Yb:KYW) laser emitting at 981 nm intracavity pumped by a 912 diode-pumped Nd:GdVO4 laser. A 808 diode is used to pump the crystal nm, and Yb:KYW nm. This configuration enabled us indirectly diode-pump this ytterbium doped crystal, obtain 1.12 W output power for 19.6 of incident Furthermore, second harmonic generation has also been demonstrated with 106 mW 490.5 using LBO nonlinear crystal.
The continuous-wave (CW) laser properties of an efficient diode-pumped Nd:YAP crystal operating at 1.43 μm formed with a simple plane-concave cavity have been studied. With the incident pump power 17.8 W, output 2.2 W was obtained, giving optical conversion efficiency 12.4% and slope 14.7%. beam quality factor M2 less than 1.2. stability 2.4% in 60 minutes.
In this article, a metasurface-based liquid sensor combined with terahertz spectroscopy is proposed to detect various mediums. The consists of two intersecting resonant structures identical geometry, offering high sensitivity and resolution for index sensing. mechanism intense resonance investigated, the impact structural dimensions on device analyzed. Through experimental demonstrations, excellent detection performance achieved 120.6 GHz/RIU Q-value 82.3 structure. successfully applied...
Efficient and compact is generated by intracavity frequency doubling of a diode-pumped Sr1−x La x − y Nd Mg Al12 O19(Nd:ASL) laser at 906 nm. With 10.3 W diode pump power the frequency-doubling crystal LiB3O6 (LBO), maximum output 281 mW in blue spectra] range 453 nm has been achieved, corresponding to an optical-to-optical conversion efficiency 2.7%; stability over 4 h better than 3.8%.