Tunable dye ring-laser

Schäfer, F. P.; Müller, Holger

doi:10.1016/0030-4018(71)90256-2

Cited by 30 publications

(3 citation statements)

References 2 publications

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“…For most analytical applications of organic dye lasers, the bandwidth of the laser emission is rather broad (about 100-200 A). Several devices to narrow the frequency output have been described in the literature (7)(8)(9)(10).…”

Section: Methodsmentioning

confidence: 99%

Sodium analysis with a tunable dye laser

Kühl¹,

Marowsky²,

Torge³

1972

Anal. Chem.

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Section: Methodsmentioning

confidence: 99%

Sodium analysis with a tunable dye laser

Kühl¹,

Marowsky²,

Torge³

1972

Anal. Chem.

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“…In the 1970s, it was possible to obtain femtosecond (1 fs is equal to 10 Ϫ15 s) laser pulses based on a combination of saturable gain in a dye laser medium and a saturable dye absorber in a ring laser cavity mode together with compensation of the dispersion in group velocity (Schä fer and Mü ller, 1971). The early images from the Webb group using multiphoton excitation microscopy were obtained with a colliding-pulse 80-MHz mode-locked dye laser that generated 100-fs pulses at 630 nm (Valdemanis and Fork, 1986).…”

Section: Role Of Lasers In the Development Of Multiphoton Excitation mentioning

confidence: 99%

Antecedents of two‐photon excitation laser scanning microscopy

Masters

2003

Microscopy Res & Technique

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In 1931, Maria Göppert-Mayer published her doctoral dissertation on the theory of two-photon quantum transitions (two-photon absorption and emission) in atoms. This report describes and analyzes the theoretical and experimental work on nonlinear optics, in particular two-photon excitation processes, that occurred between 1931 and the experimental implementation of two-photon excitation microscopy by the group of Webb in 1990. In addition to Maria Göppert-Mayer's theoretical work, the invention of the laser has a key role in the development of two-photon microscopy. Nonlinear effects were previously observed in different frequency domains (low-frequency electric and magnetic fields and magnetization), but the high electric field strength afforded by lasers was necessary to demonstrate many nonlinear effects in the optical frequency range. In 1978, the first high-resolution nonlinear microscope with depth resolution was described by the Oxford group. Sheppard and Kompfner published a study in Applied Optics describing microscopic imaging based on second-harmonic generation. In their report, they further proposed that other nonlinear optical effects, such as two-photon fluorescence, could also be applied. However, the developments in the field of nonlinear optical stalled due to a lack of a suitable laser source. This obstacle was removed with the advent of femtosecond lasers in the 1980s. In 1990, the seminal study of Denk, Strickler, and Webb on two-photon laser scanning fluorescence microscopy was published in Science. Their paper clearly demonstrated the capability of two-photon excitation microscopy for biology, and it served to convince a wide audience of scientists of the potential capability of the technique.

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“…Since the 1960s, when first results of the tunable narrow-band emission from dye lasers were reported, dispersive elements typically used rotating mirrors and/or gratings [4,5]. However, the best achieved lasing linewidth was not less than 0.4 Å in the early stages until the end of the 1970s when the combination of a holographic grating and Fabry-Perot etalon were used to suppress the radiation spectrum down to 0.01 Å [6,7]. In 1978, M. G. Littman et al reported their improved, yet simplified, design with a spectral halfwidth of 1.25 GHz that corresponded to about 0.015 Å [8].…”

Section: Introductionmentioning

confidence: 99%

Spatial light modulator as a reconfigurable intracavity dispersive element for tunable lasers

et al. 2010

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Abstract:An improved approach for narrow-band wavelength selection in tunable lasers is described. To provide the tunability, a reconfigurable diffractive optical element (DOE) based on a programmable spatial light modulator (PSLM) is applied. With a proper choice of the phase transfer function of the PSLM, the device can be used as a dispersive intra-cavity component for precise tuning within the lasing spectral band of a solid-state dye laser. The suggested design allows avoiding the mechanical movement of any cavity components. The tunability performance and simulation are demonstrated using the Fourier optics method.

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Tunable dye ring-laser

Cited by 30 publications

References 2 publications

Sodium analysis with a tunable dye laser

Sodium analysis with a tunable dye laser

Antecedents of two‐photon excitation laser scanning microscopy

Spatial light modulator as a reconfigurable intracavity dispersive element for tunable lasers

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