Characteristics of a Cresyl Violet Laser

Schmidt, Werner; Appt, W.; Wittekindt, N.

doi:10.1515/zna-1972-0107

Cited by 28 publications

(5 citation statements)

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“…For example, Rhodamine 6G-Cresyl violet mixtures are reported [4,5] to have enhanced the laser efficiency of Cresyl violet, and RhodamineB-DODC mixture has enabled the generation of tunable near infrared radiation with nitrogen laser pumping [6]. This type of excitation transfer is called "sensitized fluorescence" and is well known in photochemistry [7].…”

Section: Introductionmentioning

confidence: 99%

Study of excitation transfer in laser dye mixtures by direct measurement of fluorescence lifetime

Lin¹,

Dienes²

1973

Journal of Applied Physics

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Section: Introductionmentioning

confidence: 99%

Study of excitation transfer in laser dye mixtures by direct measurement of fluorescence lifetime

Lin¹,

Dienes²

1973

Journal of Applied Physics

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“…The transfer of electronic excitation energy from a donor to an acceptor molecule generally takes place either by a direct coupling (collisional transfer or resonance transfer of the excitation due to long-range dipole-dipole interaction, i.e., non-radiative energy transfer referred to as FRET) or by a fluorescence-absorption process (radiative transfer), if the two spectra, i.e., the fluorescence of the donor and the absorption of the acceptor, are sufficiently overlapped [19][20][21]. Energy transfer between D & A dye molecules is an important mechanism used for various purposes, for example, extending the lasing wavelength [22], enhancement in tunability [23], and also increasing the power of dye lasers [24][25][26][27]. Many reports on energy transfer in organic dyes are available with a number of donoracceptor (D-A) pairs using Rhodamine-6G [28][29][30][31][32][33][34] or Rhodamine-B as an acceptor [35][36][37][38][39].…”

Section: Introductionmentioning

confidence: 99%

A comparative study of conventional FRET and light harvesting properties of Rh-110/Rh-6G and Rh-19/Rh-B organic dye pairs impregnated in sol-gel glasses

Mahato

Kumar

2023

Methods Appl. Fluoresc.

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Two different pairs of laser dyes, Rhodamine-110 (Rh-110)/Rhodamine-6G (Rh-6G) and Rhodamine-19 (Rh-19)/Rhodamine-B (Rh-B) (the first dye in each pair as a donor and the second as an acceptor) were impregnated in silica samples prepared by the sol-gel method and spectroscopically studied using absorption and steady-state fluorescence techniques. The critical transfer distance (R0), actual distance (r) between the donor and acceptor, overlap integral [J(ῡ)], FRET (fluorescence resonance energy transfer) efficiency (E), and antenna effect efficiency (AE) were investigated in detail based on the variation in acceptor concentration. The FRET efficiency, antenna effect efficiency, and actual donor-acceptor distance for Rh-110/Rh-6G and Rh-19/Rh-B dye pairs corresponding to acceptor concentration ranges (3.83 to 7.65)×10-5 M/L and (3.71 to 8.34)×10-5 M/L, respectively, were found to be in the ranges of 57.38% to 74.89%, 36.97% to 24.13%, 5.44 nm to 4.77 nm, and 77.01%. Furthermore, maximum FRET efficiencies of 85.68% and 87.63% and antenna effect efficiencies of 36.97% and 40.95% for Rh-110/Rh-6G and Rh-19/Rh-B, respectively, were also reported. Our results demonstrate the superior FRET efficiency of Rh-19/Rh-B over Rh-110/Rh-6G dye pair in sol-gel glasses, while the antenna effect efficiency of Rh-110/Rh-6G is higher than that of Rh-19/Rh-B for the same donor to acceptor (D/A) ratio. Finally, Rh-110/Rh-6G is a better energy harvester than the Rh-19/Rh-B dye pair at the common D/A ratio. These results are explained in terms of molecular structure similarity, polarity, and rigidity of donor and acceptor.

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“…Rhodamine 6G (Rh6G) -cresyl violet (CV) is one of the popular energy transfer systems [22,23]. The addition of Rh6G was reported to enhance the lasing efficiency of CV [24]. Using this system, Basheer et al have reported the pump-power dependence and effect of the acceptor concentration in a prism-type geometry [14,25,26].…”

Section: Introductionmentioning

confidence: 99%

Distributed-Feedback Solid-State Polymeric-Dye Lasers Based on Excitation-Energy Transfer

Vijayaraghavan

Ahamed

2014

J Russ Laser Res

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Using Q-switched Nd:YAG laser excitation, we investigate both theoretically and experimentally the energy transfer between dyes Pyronin-Y (PY) and cresyl violet (CV) incorporated in a methyl methacrylate (MMA) matrix. From the absorption and fluorescence spectral data of PY and CV dyes, we calculate the absorption and emission cross-section of donor and acceptor dye molecules, the critical transfer radius R 0 , the critical concentration C 0 , the half-quenching concentration C 1/2 , and the Foster-type transfer rate k f . We study the influence of donor-acceptor concentration and pump power on the energy transfer and its mechanism. Both energy transfer phenomenon and the self-absorption mechanism play a role in laser tunability. We achieve a tuning of the output wavelength (between 580 and 670 nm) by varying the periodic gain modulation generated by a Q-switched Nd:YAG laser.

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Characteristics of a Cresyl Violet Laser

Cited by 28 publications

References 1 publication

Study of excitation transfer in laser dye mixtures by direct measurement of fluorescence lifetime

Study of excitation transfer in laser dye mixtures by direct measurement of fluorescence lifetime

A comparative study of conventional FRET and light harvesting properties of Rh-110/Rh-6G and Rh-19/Rh-B organic dye pairs impregnated in sol-gel glasses

Distributed-Feedback Solid-State Polymeric-Dye Lasers Based on Excitation-Energy Transfer

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