scholarly journals Demonstration of a tilted-pulse-front pumped planparallel slab terahertz source

2019 ◽  
Vol 205 ◽  
pp. 01020
Author(s):  
Priyo S. Nugraha ◽  
Gergő Krizsán ◽  
Csaba Lombosi ◽  
György Tóth ◽  
László Pálfalvi ◽  
...  
Keyword(s):  
Lithium Niobate ◽  
Nonlinear Optical ◽  
Lithium Niobate Crystal ◽  
Pulse Generation ◽  
Pulse Front ◽  
Terahertz Source ◽  
Transmission Grating ◽  
High Pulse ◽  
Pulse Energies

THz pulse generation in a nonlinear optical slab with an entrance surface having an echelon structure is demonstrated. The setup uses a transmission grating and a planeparallel lithium-niobate crystal slab, and ensures a good-quality, symmetric THz beam and enables scalability to high pulse energies.

scholarly journals Calculation of nonlinear optical properties of lithium niobate crystals

2021 ◽  
Vol 12 (2-2021) ◽  
pp. 72-76
Author(s):  
D. A. Vorobev ◽  
◽  
O. V. Sidorova ◽  
M. N. Palatnikov ◽  
A. V. Kadetova ◽  
...  
Keyword(s):  
Optical Properties ◽  
Lithium Niobate ◽  
Nonlinear Optical ◽  
Frequency Conversion ◽  
Lithium Niobate Crystal ◽  
Second Harmonic ◽  
Polar Axis ◽  
Nonlinear Optical Properties ◽  
Optical Effects ◽  
Lithium Niobate Crystals

The coefficients of the second-order nonlinear optical tensor for lithium niobate crystal with a composition close to stoichiometric were calculated. The calculated results show that the contribution of the Li-O group to the optical effects of the second harmonic was greater than the contribution of the Nb-O group. The results also showed that the most efficient frequency conversion occurred along the polar axis of the crystal

Modeling of cluster formation in nonlinear optical lithium niobate crystal

2011 ◽  
Vol 56 (2) ◽  
pp. 221-226 ◽  
Author(s):  
V. M. Voskresenskii ◽  
O. R. Starodub ◽  
N. V. Sidorov ◽  
M. N. Palatnikov ◽  
B. N. Mavrin
Keyword(s):  
Lithium Niobate ◽  
Nonlinear Optical ◽  
Lithium Niobate Crystal ◽  
Cluster Formation

scholarly journals Near-optimal intense and powerful terahertz source by optical rectification in lithium niobate crystal

2021 ◽  
Author(s):  
Léo Guiramand ◽  
Joel Edouard NKECK ◽  
xavier ropagnol ◽  
Tsuneyuki Ozaki ◽  
Francois Blanchard
Keyword(s):  
Lithium Niobate ◽  
Lithium Niobate Crystal ◽  
Optical Rectification ◽  
Terahertz Source

scholarly journals VS2 as saturable absorber for Q-switched pulse generation

Nanophotonics ◽  
2020 ◽  
Vol 9 (8) ◽  
pp. 2569-2576 ◽  
Author(s):  
Lu Li ◽  
Lihui Pang ◽  
Qiyi Zhao ◽  
Yao Wang ◽  
Wenjun Liu
Keyword(s):  
Saturable Absorber ◽  
Nonlinear Optical ◽  
Modulation Depth ◽  
Signal To Noise Ratio ◽  
Transition Metal Dichalcogenides ◽  
Laser Cavity ◽  
Pulse Generation ◽  
High Signal ◽  
Power Pulse ◽  
Metal Dichalcogenides

AbstractTransition metal dichalcogenides have been widely utilized as nonlinear optical materials for laser pulse generation applications. Herein, we study the nonlinear optical properties of a VS2-based optical device and its application as a new saturable absorber (SA) for high-power pulse generation. Few-layer VS2 nanosheets are deposited on the tapered region of a microfiber to form an SA device, which shows a modulation depth of 40.52%. After incorporating the microfiber-VS2 SA into an Er-doped fiber laser cavity, passively Q-switched pulse trains could be obtained with repetition rates varying from 95 to 233 kHz. Under the pump power of 890 mW, the largest output power and shortest pulse duration are measured to be 43 mW and 854 ns, respectively. The high signal-to-noise ratio of 60 dB confirms the excellent stability of the Q-switching state. To the best of our knolowdge, this is the first illustration of using VS2 as an SA. Our experimental results demonstrate that VS2 nanomaterials have a large potential for nonlinear optics applications.

Spectroscopic and photoluminescent studies of magnesium- and erbium-codoped lithium niobate crystal

2000 ◽  
Author(s):  
Hong X. Zhang ◽  
Chan Hin Kam ◽  
Yan Zhou ◽  
Qing Xiang ◽  
Kantisara Pita ◽  
...  
Keyword(s):  
Lithium Niobate ◽  
Lithium Niobate Crystal
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