cw OPERATION OF AN ORGANIC DYE SOLUTION LASER

Peterson, O. G.; Tuccio, Salvatore; Snavely, B.B.

doi:10.1063/1.1653384

Cited by 228 publications

(69 citation statements)

References 9 publications

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“…Thus, pulsed xenon lamps were shown to lessen photo-damage in comparison to continuous illumination due to reduced heating of the sample [2]. Similarly, millisecond pulsed illumination by LEDs have been reported to reduce photo-bleaching (as well as photo-toxicity) [36][37][38]. However, we observed major fluorescence enhancement for nanosecond (~100 ns) illumination as shown in Figure 4 [35].…”

Section: Optimal Choice Of Pulsed Excitation In One-photon Fluorescencecontrasting

confidence: 49%

Towards controlling molecular motions in fluorescence microscopy and optical trapping: a spatiotemporal approach

Goswami

2011

International Reviews in Physical Chemistry

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This account reviews some recent studies pursued in our group on several control experiments with important applications in (one-photon) confocal and two-photon fluorescence laser-scanning microscopy and optical trapping with laser tweezers. We explore the simultaneous control of internal and external (i.e. centre-of-mass motion) degrees of freedom, which require the coupling of various control parameters to result in the spatiotemporal control. Of particular interest to us is the implementation of such control schemes in living systems. A live cell is a system of a large number of different molecules which combine and interact to generate complex structures and functions. These combinations and interactions of molecules need to be choreographed perfectly in time and space to achieve intended intra-cellular functions. Spatiotemporal control promises to be a versatile tool for dynamical control of spatially manipulated bio-molecules.

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Section: Optimal Choice Of Pulsed Excitation In One-photon Fluorescencecontrasting

confidence: 49%

Towards controlling molecular motions in fluorescence microscopy and optical trapping: a spatiotemporal approach

Goswami

2011

International Reviews in Physical Chemistry

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“…In the following, we assume that thermal effects produced by localized heating of the dyes under excitations are minimized over the lasing duration (e.g. few tens of milliseconds in a non-flowing dye laser 13 ) through a careful design of the device 14 . We focus instead on optimizing the physical properties of the dyes and optical properties of the cavities to achieve (i) and (ii), assuming a photobleaching rate determined by the system chemical composition of the organic molecule, the host matrix, and packaging.…”

Section: Introductionmentioning

confidence: 99%

Modeling of threshold and dynamics behavior of organic nanostructured lasers

et al. 2014

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Organic dye molecules offer significant potential as gain media in the emerging field of optical amplification and lasing at subwavelength scales. Here, we investigate the laser dynamics in systems comprising subwavelength-structured cavities that incorporate organic dyes. To this end, we have developed a comprehensive theoretical framework able to accurately describe the interaction of organic molecules with any arbitrary photonic structure to produce single-mode lasing. The model provides explicit analytic expressions of the threshold and slope efficiency that characterize this class of lasers, and also the duration over which lasing action can be sustained before the dye photobleaches. Both the physical properties of the dyes and the optical properties of the cavities are considered. We also systematically studied the feasibility of achieving lasing action under continuous-wave excitation in optically pumped monolithic organic dye lasers. This study suggests routes to realize an organic laser that can potentially lase with a threshold of only a few W /cm 2 . Our work puts forward a theoretical formalism that could enable the advancement of nanostructured organic-based light emitting and sensing devices.

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“…3) may be closed by using intracavity tuning elements. Even with unpurified CV (2.5-10 -5 molar) together with R6G (2.5-10" 4 molar), dissolved in water with 1.5% Ammonix LO 7 , a continuous tuning range from 580 nm to 670 nm was achieved. A 3-prism frequency selector was used 5 .…”

Section: A) Flashlamp Pumpingmentioning

confidence: 98%

Characteristics of a Cresyl Violet Laser

Schmidt

Appt

Wittekindt

1972

Zeitschrift Für Naturforschung A

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The properties of flashlamp-and laser-pumped cresyl violet lasers emitting between 620 and 710 nm were studied. In mixed cresyl violet-rhodamine 6G solutions, the excitation efficiency was found to be enhanced by more than a factor of two, the major part of the excitation energy being supplied by the rhodamine 6G fluorescence radiation.Self-modelocking in a 3-component solution, containing cresyl violet, rhodamine 6G and a saturable absorber dye, was observed.

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cw OPERATION OF AN ORGANIC DYE SOLUTION LASER

Cited by 228 publications

References 9 publications

Towards controlling molecular motions in fluorescence microscopy and optical trapping: a spatiotemporal approach

Towards controlling molecular motions in fluorescence microscopy and optical trapping: a spatiotemporal approach

Modeling of threshold and dynamics behavior of organic nanostructured lasers

Characteristics of a Cresyl Violet Laser

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