Investigation of the Growth Rate Formula and Bulk Laser Damage Threshold KDP Crystal Growth from Aqueous Solution by the Sankaranarayanan-Ramasamy (SR) Method

Balamurugan, N. B.; Ramasamy, P.

doi:10.1021/cg050680n

Cited by 77 publications

(38 citation statements)

References 16 publications

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“…Long columns of solution are used in Sankaranarayanan-Ramasamy method [19][20][21][22]. Above a particular column height cluster size will become large and when they come to the bottom of the solution due to gravitational field in large number the crystal growth process will be disturbed.…”

Section: Resultsmentioning

confidence: 99%

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Effect of additives in supersaturated binary and ternary solutions on cluster growth by gravity driven concentration gradient studies

Babu¹,

Ramasamy²

2008

Cryst. Res. Technol.

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The concentration gradients formed in long column supersaturated solutions of the binary systems Potassium dihydrogen phosphate -Water, Benzophenone -Ethanol, Ammonium dihydrogen phosphate -Water, Potassium hydrogen phthalate -Water and ternary systems Potassium dihydrogen phosphate -Potassium chloride -Water, Benzophenone -Urea -Ethanol, Ammonium dihydrogen phosphate -Urea -Water, Potassium hydrogen phthalate -Ethylenediaminetetraacetic acid -Water under stirred and non-stirred conditions have been studied. The solution concentration was measured at different heights, at different degrees of supersaturation and at different times. Weight average molecular weight, Degree of Association, Number average molecular weight, Average number of molecules per cluster and weight average cluster diameter were calculated for binary and ternary supersaturated solutions under stirred and non-stirred conditions. Under stirred conditions concentration gradient of all the above mentioned systems decrease compared to non-stirred conditions. The cluster sizes are estimated from concentration gradient data in the presence and absence of additives and also corresponding changes in metastable zonewidths are studied. The changes in concentration gradients of supersaturated solutions appear to be a reliable indicator of the effect of additives on cluster growth and nucleation. As long column of solution is used in growing crystal by Sankaranarayanan-Ramasamy method the effect of gravity driven concentration gradient on critical column length is investigated.

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Section: Resultsmentioning

confidence: 99%

“…Recently developed Sankaranarayanan-Ramasamy method uses long columns of supersaturated solutions [19][20][21][22]. In Sankaranarayanan-Ramasamy method also similar concentration gradients are developed.…”

Section: Introductionmentioning

confidence: 99%

Effect of additives in supersaturated binary and ternary solutions on cluster growth by gravity driven concentration gradient studies

Babu¹,

Ramasamy²

2008

Cryst. Res. Technol.

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“…The results obtained from the characterization techniques such as XRD, phase-matching study and laser damage threshold measurement demonstrate the suitability of this method to obtain nonlinear elements right during crystal growth thus decreasing material consumption when making products for nonlinear optical applications [11]. Following the success of the SR method for the growth of benzophenone [2,11], KDP [12] crystals, now it was used for the growth of TGS.…”

Section: Application Of the Sr Methods To Grow Tgs Crystalsmentioning

confidence: 88%

Growth of TGS crystals using uniaxially solution‐crystallization method of Sankaranarayanan‐Ramasamy

Balamurugan¹,

Lenin²,

Bhagavannarayana³

et al. 2007

Cryst. Res. Technol.

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The recently discovered crystal growth method called uniaxially solution-crystallization method of Sankaranarayanan-Ramasamy (SR) is modified in some aspects and used for growth of triglycine sulphate (TGS) crystals. The modification leads to the simplicity, reduction of cost and avoided the temperature fluctuations. The <010> direction of TGS is very important and used for fabrication of infrared detectors. Using this method, the <001>, <010> directional crystals of TGS were successfully grown in a glass crystallizer. The grown crystal was characterized by HRXRD, UV-Visible and dielectric studies. The results prove the suitability of the modified SR method for oriented TGS crystal.

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“…9 The laser damage threshold (LDT) of nonlinear optical components depends on physical and chemical factors, particularly imperfections, defects and the concentration and type of the impurities, etc. 10 The LDT of the grown pure and 2M%-K 2 CO 3 -doped KDP single crystals was carried out using a Nd:YAG laser with the wavelength 1064 nm and shot-to-shot mode, with an energy per pulse of 50 mJ, a repetition rate of 10 Hz, a pulse duration of 7 ns, a beam waist of 0.0841 mm and a spot diameter of 2.3 mm. The laser beam was focused on the sample with 1-m and 50-cm focal-length lenses.…”

Section: Laser Damage Threshold (Ldt)mentioning

confidence: 99%

Growth of K2CO3-doped KDP crystal from an aqueous solution and an investigation of its physical properties

Rousta¹,

Dizaji²

2016

Mater. Tehnol.

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In this present work, KDP and 2M%-K2CO3-doped KDP crystals were grown by a slow-evaporation solution technique. The grown crystals were characterized by Fourier Transform Infrared (FT-IR) spectroscopy, X-ray diffractometry (XRD), UV-Vis spectroscopy, and laser damage threshold (LDT) analysis. The presence of the functional groups of the grown crystals was identified from the FT-IR spectra. The XRD tests showed that the grown crystals had a tetragonal structure. A comparison of the optical transmission of the grown crystals revealed that the K2CO3-doped KDP crystal had a higher transmission than the pure KDP crystal for the entire UV and visible region. Keywords: growth from solution, slow-evaporation solution technique, KDP crystal, K2CO3 additive V predstavljenem delu so KDP in z 2M % K2CO3 dopirani KDP kristali rasli s tehniko po~asnega izhlapevanja teko~ine. Dobljeni kristali so bili karakterizirani iz infrarde~o spektroskopijo s Fourierjevo transformacijo (FT-IR), z rentgensko difrakcijo (XRD), z UV-Vis spektroskopijo in s pragom po{kodbe z laserjem (LDT). Prisotnost funkcionalnih skupin kristalov v rasti je bila dolo~ena s FT-IR spektrom. XRD je pokazal, da imajo rasto~i kristali tetragonalno zgradbo. Primerjava prepustnosti svetlobe v rasto~ih kristalih je odkrila, da imajo KDP kristali, dopirani s K2CO3, bolj{o prepustnost kot pa~isti KDP v celotnem UV in v vidnem podro~ju. Klju~ne besede: rast iz raztopine, tehnika po~asnega izparevanja raztopine, KDP kristal, dodatek K2CO3

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Investigation of the Growth Rate Formula and Bulk Laser Damage Threshold KDP Crystal Growth from Aqueous Solution by the Sankaranarayanan-Ramasamy (SR) Method

Cited by 77 publications

References 16 publications

Effect of additives in supersaturated binary and ternary solutions on cluster growth by gravity driven concentration gradient studies

Effect of additives in supersaturated binary and ternary solutions on cluster growth by gravity driven concentration gradient studies

Growth of TGS crystals using uniaxially solution‐crystallization method of Sankaranarayanan‐Ramasamy

Growth of K2CO3-doped KDP crystal from an aqueous solution and an investigation of its physical properties

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