Results 21 to 30 of about 23,920 (290)

Bi2Te3/Graphene Heterostructure as the Saturable Absorber for ~1.0 μm Passively Q-switched Solid State Pulsed Laser

open access: yesCrystals, 2022
Due to the tunable nonlinear optical properties of the Bi2Te3/graphene heterostructure, stable solid state pulsed lasers based on the Bi2Te3/graphene saturable absorber have attracted intensive attention. In this work, the Bi2Te3/graphene heterostructure
Yijian Sun, Houping Xia
doaj   +1 more source

Third-order nonlinear optical responses of CuO nanosheets for ultrafast pulse generation

open access: yesJournal of Materiomics, 2022
As a representative transition metal oxide, cupric oxide (CuO) has attracted a lot of interest in miscellaneous fields. In the present work, the prominent third-order nonlinear optical (NLO) features of CuO nanosheets were demonstrated via the typical Z ...
Li Dong   +4 more
doaj   +1 more source

Realizing Saturable Absorption and Reverse Saturable Absorption in a PEDOT:PSS Film via Electrical Modulation [PDF]

open access: yesACS Applied Materials & Interfaces, 2020
Electrical tuning of the nonlinear absorption of materials has promising application potential, while studies remain rare. In this work, we show that the third-order nonlinear absorption of poly(3,4-ethylenedioxythiophene) chemically doped with poly(styrene sulfonic acid) [PEDOT:PSS] can be effectively modulated by external voltage.
Yanhui Sun   +7 more
openaire   +2 more sources

Wideband saturable absorption in few-layer molybdenum diselenide (MoSe₂) for Q-switching Yb-, Er- and Tm-doped fiber lasers. [PDF]

open access: yes, 2015
We fabricate a free-standing molybdenum diselenide (MoSe2) saturable absorber by embedding liquid-phase exfoliated few-layer MoSe2 flakes into a polymer film.
Hasan, T.   +6 more
core   +4 more sources

Terahertz saturable absorbers from liquid phase exfoliation of graphite

open access: yesNature Communications, 2017
Graphene shows promise for saturable absorption, a key property for ultrafast lasing, yet graphene saturable absorbers operating in the terahertz region suffer from low absorption modulation.
Vezio Bianchi   +13 more
doaj   +1 more source

2D Saturable Absorbers for Fibre Lasers [PDF]

open access: yes, 2015
© 2015.Two-dimensional (2D) nanomaterials are an emergent and promising platform for future photonic and optoelectronic applications. Here, we review recent progress demonstrating the application of 2D nanomaterials as versatile, wideband saturable ...
Kelleher, E, Woodward, R
core   +2 more sources

Laser mode-locking with saturable absorbers [PDF]

open access: yes, 1967
In this paper we describe a mode-locked laser in terms of traveling pulses of light. We show that the energy absorbed by a saturable absorber is a minimum if the pulselength is a minimum, and that two pulses are essentially as favorable as one if they ...
Garmire, Elsa M., Yariv, Amnon
core   +2 more sources

Microfabricated saturated absorption laser spectrometer

open access: yesOptics Express, 2007
We demonstrate a miniature microfabricated saturated absorption laser spectrometer. The system consists of miniature optics, a microfabricated Rb vapor cell, heaters, and a photodetector, all contained within a volume of 0.1 cm(3). Saturated absorption spectra were measured with a diode laser at 795 nm.
Svenja A, Knappe   +2 more
openaire   +2 more sources

Nonlinear optical studies of calcium tartrate crystals

open access: yesJournal of Taibah University for Science, 2019
Calcium Tartrate crystals were synthesized using sol–gel technique. Linear optical studies of the crystals were carried out in the UV–Vis-NIR spectral range.
I. Rejeena   +5 more
doaj   +1 more source

Large-scale monolayer molybdenum disulfide (MoS2) for mid-infrared photonics

open access: yesNanophotonics, 2020
Mid-infrared (MIR) photonics has attracted tremendous interest because of its broad applications at atmospheric windows. In this work, we report high-performance MIR photonics based on large-scale and good-quality monolayer molybdenum disulfide (MoS2 ...
Pan Han   +8 more
doaj   +1 more source

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