TITLE

Temporal measurement on and using pulses from spectrally narrowed emission in styrylpyridinium cyanine dye

AUTHOR(S)
Dharmadhikari, Aditya K.; Bhowmik, Achintya K.; Ahyi, Ayayi C.; Thakur, Mrinal
PUB. DATE
November 2001
SOURCE
Applied Physics Letters;11/19/2001, Vol. 79 Issue 21, p3383
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Highly efficient spectrally narrowed emission (SNE) was observed in the solution of strylpyridinium cyanine dye (SPCD) pumped by fundamental and second harmonic of a picosecond Nd:YAG laser in two separate arrangements. A highly directional emission was observed in both the pumping arrangements without incorporating any mirrors. The pulse duration of the SNE was measured by background free SHG intensity autocorrelation technique. The measured duration of the pulses was 40 ps. These pulses, having a spectral linewidth of 10 nm (full width at half maximum), were used as a probe to measure the transient changes in the transmission in SPCD solution using a pump–probe setup. The transient optical transmission indicated a gain at the overlap and no gain was observed beyond a delay of 40 ps. © 2001 American Institute of Physics.
ACCESSION #
5549581

 

Related Articles

  • Highly efficient phosphorescent emission from organic electroluminescent devices. Baldo, M.A.; O'Brien, D.F.; You, Y.; Shoustikov, A.; Sibley, S.; Thompson, M. E.; Forrest, S. R. // Nature;9/10/1998, Vol. 395 Issue 6698, p151 

    Reports on a high-efficiency energy transfer from both singlet and triplet states in a host material doped with the phosphorescent dye 2,3,7,8,12,13,18-octaethyl 21H,23H- porphine platinum (PtOEP). How the efficiency of electroluminescent organic light-emitting devices can be improved by the...

  • Highly efficient blue organic light-emitting devices incorporating a composite hole transport layer. Chi-Hung Liao; Meng-Ting Lee; Chih-Hung Tsai; Chen, Chin H. // Applied Physics Letters;5/16/2005, Vol. 86 Issue 20, p203507 

    Organic light-emitting devices (OLEDs) incorporating the copper phthalocyanine (CuPc)/N,N′-bis-(1-naphthyl)-N,N′-diphenyl-1,1′-biphenyl-4,4′-diamine composite hole transport layer have been fabricated. Under optimal condition, the highly efficient sky-blue OLED based on...

  • Synthesis of a new conjugated 2,2′-(1,4-phenylenedivinylene)bis-quinoxaline and a series of styryl derivatives of quinoxaline and quinoline as promising electro- and photoluminescent materials. Bachowska, B.; Matusiak, G. // Chemistry of Heterocyclic Compounds;Jan2009, Vol. 45 Issue 1, p80 

    A new poly(p-phenylenedivinylene) oligomer 2,2'-(1,4-phenylenedivinylene)bisquinoxaline, a promising candidate in organic electroluminescent devices, was synthesised via a Knoevenagel condensation reaction of 2-methylquinoxaline with 1,4-benzenedicarbaldehyde. The same synthetic strategy was...

  • Efficient lasing of a mixture of organic dyes at 610 and 670 nm. Ivanov, A. Yu. // Technical Physics Letters;Apr99, Vol. 25 Issue 4, p293 

    The efficiency of the lasing regime of a pulsed tunable laser at the "exotic" wavelengths of 610 and 670 nm, which are needed in nuclear physics, is investigated. A method for performing model calculations of the active media for such a laser, i.e., working mixtures of high-molecularweight dyes,...

  • Simultaneous three primary color laser emissions from dye mixtures. Saito, Y.; Kato, M.; Nomura, A.; Kano, T. // Applied Physics Letters;2/26/1990, Vol. 56 Issue 9, p811 

    Simultaneous two- and three-band laser emissions were obtained in a process of mixing two and three kinds of dyes excited by a nitrogen laser. They were blue, green, and yellow in a coumarin 460 (C460)/disodium fluorescein (DF)/rhodamine 610 (R610) dye mixture, and blue, green, and red in a...

  • Triplet extinction coefficients of some laser dyes. II. Pavlopoulos, Theodore G.; Golich, Daniel J. // Journal of Applied Physics;2/1/1990, Vol. 67 Issue 3, p1203 

    Presents a study that measured the triplet extinction coefficients of some laser dyes. Sulforhodamine B; Rhodamine 575; Coumarin 523.

  • Cooperative Emission of Dye Molecules at High Dephasing Rates. Klochkov, V. P.; Verkhovskiı, E. B. // Optics & Spectroscopy;May2000, Vol. 88 Issue 5, p692 

    The dependence of the emission of a concentrated (∼10[sup 19] cm[sup -3]) solution of Rhodamine C on the power density Φ of exciting laser radiation was studied. The emission intensity for the power density of exciting radiation above ∼10[sup 25] cm[sup -2] s[sup -1] was found to...

  • Coumarin dyes in laser technology. Sekar, N. // Colourage;Jun2003, Vol. 50 Issue 6, p55 

    Elaborates on coumarin dyes in laser technology. Dyes as the active media in pulsed and continuous-wave dye lasers as well as ultrafast shutters for Q-switching and passive modelocking; Spectral excitation of dyes; Synthesis of coumarins achieved starting either from substituted salicyldehydes...

  • Paint the town red. Samuel, Eugenie // New Scientist;6/30/2001, Vol. 170 Issue 2297, p23 

    Deals with the discovery of a dye with laser-like qualities. Development of a model which explains the phenomenon; Information on random lasers; Uses of the dye.

Share

Read the Article

Courtesy of VIRGINIA BEACH PUBLIC LIBRARY AND SYSTEM

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics