New dyes for passive mode locking in Nd<sup>3+</sup>lasers

Balenko, V. G.; Kaliya, A O; Kirkin, A. N.; Luk’yanets, E. A.; Mizin, V. M.; Popov, M B; Teplyakova, Natalya; Tomilova, Larisa G.; Chernykh, E. V.

doi:10.1070/qe1989v019n03abeh007871

Cited by 3 publications

(4 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…(11), we shall bear in mind that the absorption and emission oscillator axes of dye molecules generally coincide for a single electronic transition, i.e., a Q (&)/<7 abs = <r, (k)/a em , and then 4bs = (т + r d )/r(a abs (12) n For molecules described by the linear oscillator model, a linearly polarized radiation field we have CT O (k) = 3<7 abs cos 2 0, where the axis of the spherical coordinate system is parallel to the electric field vector: (OQ ) = 9о1ы S cos 4 0 sin в XdOdp /4тг = 9^/5. We then have /Ы = (T = r d )/T(<7 abs + <7 em ) (T + 9T d /5).…”

Section: Bleaching Intensity Of a Solution For Polarized Lightmentioning

confidence: 99%

“…Some of these dyes had been used for mode self-locking in a YAG:Nd 3 + laser. 12 In addition, measurements were made for solutions of the wellknown Soviet dyes Nos. 3274 and 3955, and the foreign dyes Nos.…”

Section: Lifetime Measurements Using Bleaching Curvesmentioning

confidence: 99%

“…These have a fairly short (6-18 ps) relaxation time, a moderate bleaching intensity, and an appreciably higher stability than polymethine dyes. 12 A solution of dye No. 15 in C 2 H 6 C1 2 is particularly attractive (see Table I).…”

Section: Notementioning

confidence: 99%

See 2 more Smart Citations

Measurement of excited-state lifetimes of dye molecules using bleaching curves of solutions obtained polarized light

Masalov¹,

Петухов²,

Timokhovich³

et al. 1991

Sov. J. Quantum Electron.

View full text Add to dashboard Cite

It was established analytically that the results of measurements of the excited-state lifetime of dye molecules using bleaching curves of solutions are influenced by the polarization of the radiation, the anisotropy of the molecular absorption and emission oscillators, and the rotational diffusion time of the molecules. These factors could alter almost twofold the ratio of the molecular lifetime to the observed bleaching intensity of the solution. A 300-ps neodymium laser pulse was used to obtain bleaching curves of various dye solutions and to determine the lifetimes of these dyes in the 2.5-130 ps range. The results of measurements on a solution of dye No. 15 led to its testing as a passive switch in a neodymium-doped lanthanum beryllate laser and its potential for mode locking of neodymium laser radiation was demonstrated.

show abstract

Section: Bleaching Intensity Of a Solution For Polarized Lightmentioning

confidence: 99%

Section: Lifetime Measurements Using Bleaching Curvesmentioning

confidence: 99%

See 1 more Smart Citation

Measurement of excited-state lifetimes of dye molecules using bleaching curves of solutions obtained polarized light

Masalov¹,

Петухов²,

Timokhovich³

et al. 1991

Sov. J. Quantum Electron.

View full text Add to dashboard Cite

show abstract

“…These compounds are capable of coordinating many elements of the Periodic Table, including lanthanides, to form coordination compounds with various structures, both single-decker and sandwich-like [4]. The latter may be used as sensors [5][6][7], materials for ionizing radiation detectors [8], dyes for passive synchronization of laser modes [9], and electrochromic materials [10]. Among numerous sandwich-like complexes, mixed-ligand coordination compounds containing tetrabenzoporphyrin and phthalocyanine fragments were studied most poorly [11,12], whereas coordination compounds based on tetrabenzocorrins were not reported at all.…”

mentioning

confidence: 99%

Synthesis and spectral parameters of symmetric and unsymmetrical sandwich-like double- and triple-decker lanthanide complexes containing 1-methyltetrabenzooctadehydrocorrin and phthalocyanine fragments

2011

View full text Add to dashboard Cite

Single-and double-decker lanthanide complexes with 1-methyltetrabenzooctadehydrocorrin were synthesized by reaction of 3-[(1-hydroxy-1-methyl-1H-isoindol-3-yl)methylidene]-2,3-dihydro-1H-isoindol-1-one with hydrazine hydrate in the presence of lanthanide acetates. Heating of the former with phthalonitrile gave unsymmetrical double-and triple-decker complexes containing 1-methyltetrabenzooctadehydrocorrin and phthalocyanine fragments. Spectral properties of the synthesized complexes were studied.Phthalocyanines and porphyrins constitute two most important classes of tetrapyrrole pigments [1-3]. These compounds are capable of coordinating many elements of the Periodic Table, including lanthanides, to form coordination compounds with various structures, both single-decker and sandwich-like [4]. The latter may be used as sensors [5][6][7], materials for ionizing radiation detectors [8], dyes for passive synchronization of laser modes [9], and electrochromic materials [10]. Among numerous sandwich-like complexes, mixed-ligand coordination compounds containing tetrabenzoporphyrin and phthalocyanine fragments were studied most poorly [11,12], whereas coordination compounds based on tetrabenzocorrins were not reported at all.The present work was aimed at synthesizing homoand heteroligand lanthanide complexes containing 1-methyltetrabenzooctadehydrocorrin and phthalocyanine fragments and studying their spectral properties. As reported previously [13], single-decker 1-methyltetrabenzooctadehydrocorrin complex I with hydroxylanthanum can be prepared by reaction of 3-[(1-hydroxy-1-methyl-1H-isoindol-3-yl)methylidene]-2,3-dihydro-1H-isoindol-1-one (II) with hydrazine hydrate in the presence of lanthanum(III) acetate in boiling butan-1-ol (reaction time 3 h). We applied a similar procedure to obtain analogous lutetium and erbium complexes III and IV. In addition, we found that the reaction performed with a deficiency of metal salt gives mainly double-decker bis(1-methyltetrabenzooctadehydrocorrin) complexes of lutetium, erbium, and lanthanum (compounds V-VII). Thus the synthesis of single-and double-decker lanthanide complexes with 1-methyltetrabenzooctadehydrocorrin may be illustrated by Scheme 1.When the reaction was complete, in each case the mixture was diluted with toluene. Most unreacted compound II and metal salt separated from the solution, while corrin metal complexes remained dissolved. The precipitate was filtered off, and the filtrate was subjected to column chromatography on aluminum oxide using toluene as eluent, the first bright green fraction being collected. We thus succeeded in separating the target metal complexes from by-products. Unlike initial compound II and products of its reaction with hydrazine (brown tarry substances), corrin metal complexes are readily soluble in toluene-butan-1-ol and are characterized by high chromatographic mobility on aluminum oxide (R f 0.70-0.85).Compounds I and III-VII were isolated as dark green crystalline substances that are readily soluble in toluene, acetone, DMF, and ch...

show abstract

Synthesis and Properties of Heteroligand Sandwich Complexes of Lantanides Containing 5-(Quinolin-2-yl)tetrabenzoporphyrin and Phthalocyanine Chromophores

2020

View full text Add to dashboard Cite

New dyes for passive mode locking in Nd³⁺lasers

Cited by 3 publications

References 0 publications

Measurement of excited-state lifetimes of dye molecules using bleaching curves of solutions obtained polarized light

Measurement of excited-state lifetimes of dye molecules using bleaching curves of solutions obtained polarized light

Synthesis and spectral parameters of symmetric and unsymmetrical sandwich-like double- and triple-decker lanthanide complexes containing 1-methyltetrabenzooctadehydrocorrin and phthalocyanine fragments

Synthesis and Properties of Heteroligand Sandwich Complexes of Lantanides Containing 5-(Quinolin-2-yl)tetrabenzoporphyrin and Phthalocyanine Chromophores

Contact Info

Product

Resources

About

New dyes for passive mode locking in Nd3+lasers

Cited by 3 publications

References 0 publications

Measurement of excited-state lifetimes of dye molecules using bleaching curves of solutions obtained polarized light

Measurement of excited-state lifetimes of dye molecules using bleaching curves of solutions obtained polarized light

Synthesis and spectral parameters of symmetric and unsymmetrical sandwich-like double- and triple-decker lanthanide complexes containing 1-methyltetrabenzooctadehydrocorrin and phthalocyanine fragments

Synthesis and Properties of Heteroligand Sandwich Complexes of Lantanides Containing 5-(Quinolin-2-yl)tetrabenzoporphyrin and Phthalocyanine Chromophores

Contact Info

Product

Resources

About

New dyes for passive mode locking in Nd³⁺lasers