We report time-resolved, quadrupole mass-selected measurements of neutral and ion emission from single crystal sodium nitrate exposed to ns pulse excimer laser radiation at 157 nm (F2 excimer, 7.9 eV photons), 193 nm (ArF excimer, 6.4 eV photons) and 248 nm (KrF excimer, 5.0 eV photons). Neutral emissions, including NO, O2, N2, and Na are observed at all three wavelengths. At 193 nm, intense at...

A new fluorescent macrocyclic structure (L1) bearing two naphthalene units at both ends of a cyclic polyaminic chain containing two phenanthroline units was investigated with potentiometric and fluorescence (steady-state and time-resolved) techniques. The fluorescence emission spectra show the simultaneous presence of three bands: a short wavelength emission band (naphthalene monomer), a middle...

A tetradentate Pd(ii) complex, Pd3O3, which exhibits highly efficient excimer emission is synthesized and characterized. Pd3O3 can achieve blue emission despite using phenyl-pyridine emissive ligands which have been a mainstay of stable green and red phosphorescent emitter designs, making Pd3O3 a good candidate for stable blue or white OLEDs. Pd3O3 exhibits strong and efficient phosphorescent e...

The binding and fluorescence properties of complementary RNA sequences attached to different numbers of pyrenes via one carbon linker at the 2'-O-positions have been investigated. Upon hybridization of the pyrene-modified RNA sequences, the modified RNA duplexes with normal thermal stability are formed, and the pyrene arrays are assembled in an inter-strand manner. Because hypochromic effects i...

OBJECTIVE To evaluate the effects of excimer laser in situ keratomileusis in correcting severe myopia and astigmatism after penetrating keratoplasty. METHODS Excimer laser in situ keratomileusis was performed on ten eyes of ten patients to correct high ametropia in cases having previously undergone penetrating keratoplasty. RESULTS After surgery, all grafts remained clear and no corneal gra...

AIM To report the clinical presentation, surgical management, and outcome of retinal detachment following excimer laser. METHODS Retrospective analysis of retinal detachments observed in 11 eyes of 10 myopic patients who had previously undergone photorefractive keratectomy (PRK) or phototherapeutic keratectomy (PTK) by excimer laser. RESULTS Symptoms of visual loss in two eyes were initiall...

In December 2005 a heavy ion beam pumped UV excimer laser has been successfully demonstrated for the first time in the experiments performed at the GSI-SISHHT target area [1,2]. The primary goal for this experiment was to demonstrate laser effect on the KrF line (λ = 248 nm) and to proof this using various methods. The dependence of spontaneous and stimulated emission from pressure and composit...

Efficient monomer and excimer emission from various donor-acceptor substituted phenylethynes (PE), which are known as efficient electrogenerated chemiluminescent molecules, was observed with time-resolved fluorescence measurement during the pulse radiolysis in benzene. On the basis of the transient absorption and emission measurements, and steady-state measurements, the formation of PE in the s...

Abstract We report a simple and effective approach to organic molecules exhibiting bright circularly polarized luminescence (CPL) by combining chiral cyclic molecular scaffold multiple excimer‐enabling moieties. An α‐cyclodextrin ( CyD ) was modified with six pyrenyl groups obtain pyrene–cyclodextrins PCD s) in one‐step synthesis from commercially available compounds. The PCDs exhibited high mo...

The correction of presbyopia with excimer laser surgery on the cornea is the ultimate goal for this type of surgery, since all other treatments for refractive defects have been successfully developed and implemented. Surgery with excimer laser is safe and extremely effective with today’s standards; therefore, most manufacturer companies are working and devoting great research funds and efforts ...