Bulk growth of high quality nonlinear optical crystals of L-arginine tetrafluoroborate (L-AFB)

Owens, Constance A.; Bhat, Kamala N.; Wang, W.S; Tan, A.; Aggarwal, Mohan D.; Penn, Benjamin G.; Frazier, Donald O.

doi:10.1016/s0022-0248(01)00917-4

Cited by 26 publications

(14 citation statements)

References 5 publications

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“…The low dielectric constant of LAP is an added advantage for high-speed electrooptic modulation [6]. Several semi-organic amino acid compounds such as L-arginine hydrobromide (L-AHBr) [7], L-histidine tetrafluoroborate (L-HFB) [8], L-arginine tetrafluoroborate (L-AFB) [9], L-alanine tetrafluoroborate (L-AlFB) [10] and L-arginine acetate [11] have already been reported. L-alanine crystal shows Type II phase matching, for doubling the Nd:YAG fundamental, by propagating the pump beam nearly normal to the f1 2 0g and f0 1 1g faces [12].…”

Section: Introductionmentioning

confidence: 99%

Studies on the growth aspects of semi-organic l-alanine acetate: a promising NLO crystal

Kumar

Babu

Jayaraman

et al. 2005

Journal of Crystal Growth

145

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Section: Introductionmentioning

confidence: 99%

Studies on the growth aspects of semi-organic l-alanine acetate: a promising NLO crystal

Kumar

Babu

Jayaraman

et al. 2005

Journal of Crystal Growth

145

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“…A 250 ml crystallizer jar (4), which holds the growth solution, is placed inside a 2.5 liter jacketed kettle (3). The linear and reciprocating motion of the Teflon seed holder (5) is controlled by a rack-pinion arrangement (8) and electronic circuit (7) respectively. A reversible motor (6) is used for rotating the seed holder.…”

Section: Methodsmentioning

confidence: 99%

Design of a solution crystal growth crystallizer with a versatile electronic reciprocal motion control for a crystals holder

Batra

Carmichael-Owens

Simmons

et al. 2005

Cryst. Res. Technol.

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A description of a modified crystallizer for growing large crystals from solutions along with the design of a versatile electronic reciprocating control system to change and reciprocate the motor speed containing the seed holding rod for solution growth crystallizer is presented. In this system, rotation rate and number of revolutions in the clockwise and counter clockwise direction can be adjusted as and when desired. This electronic system alleviates the problem of jerky motion of seed holder during reciprocation as in earlier mechanical systems. Good quality crystals of important nonlinear optical materials such as Methyl-(2,4-dintropheny)-aminopropanoate: 2-Methyl-4-nitroaniline (MNA:MAP), L-Arginine Phosphate (LAP) LHistidine tetrafluoroborate (LHFB), L-Arginine tetrafluoroborate (LAFB) and others have been successfully grown using this system. The complete crystallization apparatus along with electronic circuit can be easily fabricated with readily available components by graduate and undergraduate students.

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“…L-Hystidine Tetra-Fluoro-Borate (L-HFB) is one of such novel semiorganic nonlinear optical material whose single crystal exhibit superior NLO properties than that of inorganic crystals like KDP, BBO, LBO and many other semiorganic materials [19][20][21][22][23][24]. These crystals have been recently grown in bigger size (upto several centimeters) by Sankarnarayanan-Ramasamy method which has increased the potential application of these crystals [25].…”

Section: Introductionmentioning

confidence: 99%

Solution growth and comparative characterization of L‐HFB single crystals

Sinha

Sahas

Singh

et al. 2009

Cryst. Res. Technol.

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Single crystals of L-histidine tetrafluoroborate (C 6 H 10 N 3 O 2 BF 4, L-HFB) were grown by solution growth method using two different temperature profiles: conventional, in which the growth temperature was kept constant at 30 °C and rapid, in which it was increased in steps of 1 K per day while keeping the other growth conditions same. Crystals grew in nearly 30 and 10 days in the two methods, respectively. The crystals were transparent and showing its characteristic morphology. Both types of crystals were characterized by XRD for their structural comparison. Surface morphology and growth features of the crystals were studied by SEM. Features of two dimensional layer growth steps, rectangular etch pits, slip lines and bands, etc. were observed. The presence of various functional groups and their bonding were studied by FTIR in the range 4000-400 cm -1. Thermal stability of the crystals was determined by thermo-gravimetric and differential thermal analysis. The generation of green light due to second harmonic generation for fundamental λ = 1064 nm has been confirmed in both cases. Dielectric constant measurement was carried out in the range 20 Hz-2 MHz. In the UV-Vis studies, high transmittance and a shorter 'lower cut off' value (232 nm) were observed. The effect of rapid growth on the structural, morphological and optical properties of the crystals were studied and compared to those of crystals grown in conventional way.

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Bulk growth of high quality nonlinear optical crystals of L-arginine tetrafluoroborate (L-AFB)

Cited by 26 publications

References 5 publications

Studies on the growth aspects of semi-organic l-alanine acetate: a promising NLO crystal

Studies on the growth aspects of semi-organic l-alanine acetate: a promising NLO crystal

Design of a solution crystal growth crystallizer with a versatile electronic reciprocal motion control for a crystals holder

Solution growth and comparative characterization of L‐HFB single crystals

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