Crystal growth, structural, optical, thermal, mechanical, laser damage threshold and electrical properties of triphenylphosphine oxide 4-nitrophenol (TP4N) single crystals for nonlinear optical applications

2018 ◽  
Vol 79 ◽  
pp. 152-171 ◽  
Author(s):  
P. Karuppasamy ◽  
Muthu Senthil Pandian ◽  
P. Ramasamy ◽  
Sunil Verma
Keyword(s):  
Crystal Growth ◽  
Electrical Properties ◽  
Single Crystals ◽  
Nonlinear Optical ◽  
Damage Threshold ◽  
Triphenylphosphine Oxide ◽  
Laser Damage Threshold ◽  
Laser Damage ◽  
Optical Applications ◽  
Nonlinear Optical Applications

Operational Characteristics of GaSe Crystals for Mid-IR and Far-IR Applications

1997 ◽  
Vol 484 ◽  
Author(s):  
N. C. Fernelius ◽  
F. K. Hopkins ◽  
N. B. Singh ◽  
D. Suhre ◽  
M. Marable ◽  
...  
Keyword(s):  
Nonlinear Optical ◽  
Damage Threshold ◽  
Laser Damage Threshold ◽  
Laser Damage ◽  
Phase Matching ◽  
Bridgman Technique ◽  
Operational Characteristics ◽  
Optical Applications ◽  
Nonlinear Optical Applications ◽  
Good Agreement

AbstractGaSe has a number of attractive properties for nonlinear optical applications including large birefringence for ease in phase matching. Its biggest drawback is its mechanical properties. GaSe has a strong tendency to cleave along the <100> plane which has made it difficult to grow and fabricate. We have developed a method to modify GaSe by structurally strengthening the material by doping. We have synthesized large boules of GaSe reacted mixtures and grown centimeter size single crystals by the Bridgman technique. Depending on the dopant and crystal quality, SHG measurements indicate a deff, of 51 to 76 pm/V. SHG power levels were theoretically calculated and appear to be in good agreement with the experimental data. The measured performance of crystals for the fourth harmonic generation and laser damage threshold are also reported in this paper. The damage threshold was greater than 2.8 J/cm2 and 85 KW/cm2 at the surface of the crystal.

Electrical, Optical, Structural Properties with Some Physico-Mechanical of Pure and La3+ Doped L-Alanine Acetate Single Crystals

2020 ◽  
Vol 18 (12) ◽  
pp. 894-899
Author(s):  
A. Senthamizhan ◽  
K. Sambathkumar ◽  
S. Nithiyanantham ◽  
A. A. Alagiriswamy
Keyword(s):  
Single Crystals ◽  
Nonlinear Optical ◽  
Second Harmonic ◽  
Damage Threshold ◽  
Laser Damage Threshold ◽  
Laser Damage ◽  
Slow Evaporation ◽  
Optical Studies ◽  
Dta Studies ◽  
Thermal Stability Of

Slow evaporation was used to successfully generate single crystals of pure and La3+ doped L-alanine acetate from aqueous solution. The structural, vibrational, chemical analysis carried out through XRD, UV, FTIR with FTRaman Analysis. The Nd: YAG laser was used to confirm and estimate the sample’s Second Harmonic Generation (SHG). The growing crystal’s laser damage threshold was also discovered. Thermogravimetic (TG) and Differential theromogravimetric (DTA) studies were used to measure the thermal stability of the formed crystal. The generated LAlA crystals were also subjected to dielectric and photoconductivity tests. The dopant has boosted the efficiency of the L-alanine acetate crystal, according to nonlinear optical studies.

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