Europium chelate solid laser based on morphology-dependent resonances

Taniguchi, Hiroshi; Kido, Junji; Nishiya, Masahisa; Sasaki, Shinobu

doi:10.1063/1.114464

Cited by 27 publications

(12 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Pumping of these structures with an arc-length flash tube generated heavily damped relaxation oscillations [262]. Transient laser emission was also observed from Eu 3+ -complex-doped liquid chelate droplets by pumping at a wavelength of 337.1 nm [263]. Recently, the first demonstration of a cw laser in a solid polymer host was reported [18,19] based on the Nd(TTA) 3 phen complex doped polymer channel waveguides described in Sect.…”

Section: Rare-earth-ion-activated Continuous-wave Polymer Lasersmentioning

confidence: 94%

Organic solid‐state integrated amplifiers and lasers

Grivas

Pollnau

2012

Laser & Photonics Reviews

206

202

View full text Add to dashboard Cite

Solid-state organic amplifiers and lasers are attractive for hybrid integration due to their compatibility with different material platforms, straightforward processing, and possibility to optimize easily their optical and electronic properties by molecular engineering. Advances in the gain medium design and synthesis in combination with new resonator architectures led to tremendous improvements in temporal and spectral properties, lifetime stability, gains produced and operating threshold powers, which triggered interest in their use for a broad range of integrated photonic applications. In this contribution, the current state-of-the-art in the field of organic solid-state amplifiers and lasers is reviewed from the aspects of fabrication technology, gain materials, and device performance. Furthermore, examples of the progress of this technology from a laboratory curiosity to one that demonstrates practical integrated photonic applications are highlighted. An outlook is also provided on research areas and applications that are likely to shape further developments of this technology. (Figure reprinted from [296],

show abstract

Section: Rare-earth-ion-activated Continuous-wave Polymer Lasersmentioning

confidence: 94%

Organic solid‐state integrated amplifiers and lasers

Grivas

Pollnau

2012

Laser & Photonics Reviews

206

202

View full text Add to dashboard Cite

show abstract

“…Additionally, Q ‐factor is an imporatnt parameter describing optical cavity, which can be estimated from the relation, Q = λ/Δλ, where Δλ is the line width of a peak at FWHM and λ is the wavelength of the peak. Higher the Q value, better the optical energy storage . The Q ‐factor increased with increase of D upto the value of 2000, due to diminution of the bending radiation loss of the microspheres exponentially with their D (Figure E) .…”

mentioning

confidence: 93%

2D Arrangement of Polymer Microsphere Photonic Cavities Doped with Novel N‐Rich Carbon Quantum Dots Display Enhanced One‐ and Two‐Photon Luminescence Driven by Optical Resonances

Venkatakrishnarao

Sahoo

Vattikunta

et al. 2017

Advanced Optical Materials

View full text Add to dashboard Cite

Carbon dots (CDs) are crystalline, quasi-spherical nanoparticles with sp 2 character and their sizes are in the range of <10 nm. [1][2][3][4][5] Challenging the customary metal based semiconductor quantum dots (SQDs) materials, CDs have emerged as a promising high-tech material for multidisciplinary applications due to their outstanding properties such as chemical inertness, high water solubility, easy surface modification, low or no toxicity, excellent biocompatibility, down-and upconversion-mediated photoluminescence (PL), and high photostability compared to commercial organic dyes, SQDs, and noble metal clusters. [1][2][3][4][5] CDs are versatile PL material; hence, it can be used in a wide range of emerging technologies like bioimaging, [3][4][5][6][7] sensors, [7] lasers, [8] photocatalysis, [9] energy conversion/storage devices, [10] light-emitting diodes, and optoelectronic devices. [11] Luminescent carbon dots (CDs) are emerging as a potential eco-friendly alternative to standard metal-based semiconductor quantum dots. A solvatothermal method to prepare crystalline, nitrogen-rich, surface-passivated, and rare excitation wavelength-independent green-emitting (λ max ≈ 522 nm in solution and 536 nm in solid) CDs from a pyridine diamine precursor in ethanol solvent is reported here. In comparison to a neat thin film of CDs, a film of CD-doped polystyrene microspheres (PS-CDs) displays a remarkable enhancement of the photoluminescence emission intensity driven by optical cavity effect of the composite microspheres. Apart from downconversion onephoton luminescence, upon excitation with 800 nm femtosecond pulse laser, pure CDs and PS-CDs exhibit enhanced upconversion two-photon luminescence in the range of about 410-580 nm.

show abstract

“…1 The unique optical properties of lanthanides make them useful in a wide range of applications that includes inorganic pigments, tunable lasers, amplifiers for optical communications, and organic light-emitting diodes. [2][3][4] In general, colors of solids appear brilliant and pure when the corresponding mechanism for a selective absorption of light is related to an electronic interband transition, leading to a steep absorption edge in the visible spectrum. Most metal oxides have band gaps too wide to allow absorptions in the visible region of the electromagnetic spectrum.…”

Section: Introductionmentioning

confidence: 99%

Novel Environmentally Benign Yellow Inorganic Pigments Based on Solid Solutions of Samarium-Transition Metal Mixed Oxides

Vishnu¹,

Jose²,

Reddy³

2011

Journal of the American Ceramic Society

View full text Add to dashboard Cite

A new class of environmentally benign yellow inorganic pigments having the general formula Sm6−xW1−yZrxMoyO12+δ (x ranges from 0 to 0.6 and y ranges from 0 to 1) have been synthesized by a simple solid‐state route and characterized by various spectroscopic techniques. The systematic substitution of Mo6+ for W6+ in Sm6WO12 gently shifted the absorption edge from 374 to 460 nm and consequently the designed compounds exhibited colors ranging from white to yellow. The band gap of the resultant pigments varied from 3.29 to 2.69 eV. The coloring mechanism is based on the O2p–Mo4d charge transfer transitions. Furthermore, the doping of Zr4+ for Sm3+ in Sm6MoO12 lattice produced intrinsic strain, which further red shifted the absorption edge to 479 nm. This intensified the yellow hue of the resultant compounds with band gap decreasing to 2.58 eV. The designed pigments possess good chromatic properties, especially the hue angle, which is found to be similar to those observed for industrial pigments such as PbCrO4, BiVO4, CdS, NiTiO3, and praseodymium yellow and also showed thermal and chemical stabilities. The coloring performance of the developed yellow pigments was evaluated by incorporating it into a polymer substrate material.

show abstract

Europium chelate solid laser based on morphology-dependent resonances

Cited by 27 publications

References 0 publications

Organic solid‐state integrated amplifiers and lasers

Organic solid‐state integrated amplifiers and lasers

2D Arrangement of Polymer Microsphere Photonic Cavities Doped with Novel N‐Rich Carbon Quantum Dots Display Enhanced One‐ and Two‐Photon Luminescence Driven by Optical Resonances

Novel Environmentally Benign Yellow Inorganic Pigments Based on Solid Solutions of Samarium-Transition Metal Mixed Oxides

Contact Info

Product

Resources

About