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Advanced Materials Technologies, EarlyView.ABSTRACT Molybdenum disulfide (MoS2) has attracted attention as a promising material due to the growing demand for environmentally friendly, cost‐effective, and efficient water treatment techniques. With its physicochemical characteristics, this stratified bidimensional material allows it to be highly effective in adsorption and catalytic performance ...
Pariksha Bishnoi +4 more
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Metamaterial saturable absorber mirror
Optics Letters, 2013We propose a metamaterial saturable absorber mirror at midinfrared wavelengths that can show a saturation of absorption with intensity of incident light and switch to a reflecting state. The design consists of an array of circular metallic disks separated by a thin film of vanadium dioxide (VO(2)) from a continuous metallic film. The heating due to the
Govind, Dayal, S Anantha, Ramakrishna
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Integrated ultrafast saturable absorber
Optics Letters, 1994An ultrafast saturable absorber was demonstrated experimentally in AlGaAs, operated with a photon energy below half the band gap, near 1555 nm. Both the saturation intensity and the linear transmission can be independently designed in the structure. The device is based on spatial soliton emission from a tapered channel waveguide with a corresponding ...
A, Villeneuve +4 more
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A saturable absorber for the iodine laser
Optics Communications, 1976Abstract An absorber for iodine laser pulses has been developed using iodine atoms in the ground state as the absorbing species. The iodine atoms have been produced by dissociation of gaseous molecular iodine in a heated cell. The absorption is easily saturated at moderate energy densities.
Fill, E., Hohla, K.
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The generalized saturable absorber
IEEE Photonic Society 24th Annual Meeting, 2011We extend the concept of the saturable absorber made of two linear polarizers and a fiber section to a structure with multiple polarizers and fibers. The structure is studied with simple analytical relations and full numerical simulations. We stablish design procedures for fiber lasers.
Rafael Gomez Alcala, Antonio Dengra
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Scaling of the antiresonant Fabry–Perot saturable absorber design toward a thin saturable absorber
Optics Letters, 1995We demonstrate and discuss the scaling of the antiresonant Fabry-Perot saturable absorber toward a novel antiref lection-coated thin saturable absorber. With a Ti:sapphire laser we obtained self-starting Kerr-lens mode-locked pulses as short as 19 fs. With the higher modulation depth of the thin saturable absorber we obtained soliton mode-locked self ...
I D, Jung +4 more
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Lifetimes of Saturable Absorbers
Nature, 1966THE use of saturable absorbers such as aluminium phthalocyanine for the passive Q-switching of ruby lasers1 raises the question of the lifetime of the active molecule. We have measured the lifetime of that state of aluminium phthalocyanine which corresponds to absorption at or near 6943 A.
P. W. A. BOWE +2 more
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Broadband fast semiconductor saturable absorber
Optics Letters, 1992Kerr lens mode-locked (KLM) solid-state lasers are typically not self-starting. We address this problem by introducing a broadband semiconductor saturable absorber that could be used as a tunable, all-solid-state, passive starting mechanism. We extend the wavelength tunability of a semiconductor saturable absorber to more than 100 nm using a band-gap ...
G R, Jacobovitz-Veselka +2 more
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Inhomogeneously broadened laser with a saturable absorber
Physical Review A, 1987A quantum theory for a laser with inhomogeneously broadened active and absorber atoms is presented. Photon-number distributions are derived for both on- and off-resonance operation of the laser, and the results are compared with the results of earlier investigations.
, Mortazavi, , Singh
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Tricritical behavior in the laser with a saturable absorber
Physical Review Letters, 1990Nonequilibrium continuous and discontinuous phase transitions in the laser with a saturable absorber have been observed. A novel feature of these measurements is the observation of the tricritical behavior. The adequacy of the perturbative approach to describe saturation effects is discussed in light of these measurements.
, Mortazavi, , Singh
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