Diode pumping of liquid crystal lasers

Brown, C. M.; Dickinson, Daisy K.E.; Hands, Philip J.W.

doi:10.1016/j.optlastec.2021.107080

Cited by 12 publications

(6 citation statements)

References 43 publications

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“…Diodepumping is therefore an extremely attractive proposition for these systems. Fortunately, the perpetual improvements in laser diode power, combined with new high-current short-pulsed laser drivers, has meant that laser-diode pumping of LC lasers has recently been successfully demonstrated (4,5). Using a laser diode operating at 445 nm (close to the absorbance maximum of the dye, DCM), band-edge lasing was successfully demonstrated at wavelengths between 480 nm and 650 nm.…”

Section: Recent Advances: Laser Diode Pumping Of Liquid Crystal Lasersmentioning

confidence: 99%

36‐1: Invited Paper: Liquid‐Crystal Lasers: Recent Advances and Future Opportunities

Hands

Brown

Dickinson

et al. 2022

Symp Digest of Tech Papers

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Liquid crystal (LC) lasers use a layer of chiral nematic liquid crystal to form a self‐organising resonant cavity. When doped with fluorescent dye and suitably excited, they form versatile micro‐lasers with high efficiencies, low thresholds, and selective wavelength emission across a continuous range of the visible spectrum. This, combined with their scalable fabrication, makes them attractive candidates for a wide variety of photonic applications, including laser displays. This paper includes a review of the principles of operation, of recent enhancements that are advancing the technology closer to market, and concludes with demonstrations of LC lasers used for medical imaging and low‐speckle holography.

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Section: Recent Advances: Laser Diode Pumping Of Liquid Crystal Lasersmentioning

confidence: 99%

36‐1: Invited Paper: Liquid‐Crystal Lasers: Recent Advances and Future Opportunities

Hands

Brown

Dickinson

et al. 2022

Symp Digest of Tech Papers

Self Cite

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“…19 The number of dye classes studied in the LC based systems for light amplification and light conversion applications is limited. The most commonly used dyes are pyrromethenes, [20][21][22][23][24] merocyanines, [22][23][24][25][26][27][28][29][30] coumarins 25,29 and rhodamines. 20 New dyes from different classes are still being sought, e.g.…”

Section: Introductionmentioning

confidence: 99%

Novel highly luminescent diketofurofuran dye in liquid crystal matrices for thermal sensors and light amplification

et al. 2023

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“…Along with well-known display applications, liquid crystals (LCs) are of great interest for various photonic devices. These are electrically controlled beam-steering devices and switched gratings [1,2], lenses and arrays of high-aperture lenses [3][4][5][6][7], liquid crystal metasurfaces [8][9][10], as well as liquid crystal light amplifiers and microlasers [11][12][13][14][15][16]. In many cases, the operation of these devices presupposes an effective waveguide mode of light propagation.…”

Section: Introductionmentioning

confidence: 99%

Waveguide Properties of Homogeneously Aligned Liquid Crystal Layers between ITO Electrodes and Thin Alignment Films

Palto,

Geivandov

2023

Photonics

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Numerical studies of the waveguide properties of liquid crystal layers bounded by substrates with indium tin oxide (ITO) electrodes using the finite difference time-domain (FDTD) method are carried out. On the basis of the experimental transmittance spectra of ITO-coated glass substrates in the visible and near-infrared ranges, a Lorentz model describing the dielectric properties of the ITO electrodes is created. Then, by numerical modeling, optical systems including a homogeneously aligned LC layer between the thin alignment films and the ITO electrodes on the quartz substrates are studied. It is shown that, in the case of the use of traditional alignment films or their absence, the ITO electrodes lead to significant resonant losses in the waveguide mode for both TE- and TM-polarized light. The losses mechanism based on a phase-synchronized mode coupling occurring in relatively narrow spectral ranges is discussed. We also propose a method to control and exclude the losses using thin alignment films with a proper thickness and low refractive index.

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Diode pumping of liquid crystal lasers

Cited by 12 publications

References 43 publications

36‐1: Invited Paper: Liquid‐Crystal Lasers: Recent Advances and Future Opportunities

36‐1: Invited Paper: Liquid‐Crystal Lasers: Recent Advances and Future Opportunities

Novel highly luminescent diketofurofuran dye in liquid crystal matrices for thermal sensors and light amplification

Waveguide Properties of Homogeneously Aligned Liquid Crystal Layers between ITO Electrodes and Thin Alignment Films

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