نتایج جستجو برای: pulsed dye lasers
تعداد نتایج: 96251 فیلتر نتایج به سال:
Stimulated emission on three UV transitions in Cd(+) has been observed by transferring population from inner-shell d-electron states, populated by photoionization, to outer-shell p-electron states using the output from a narrow-frequency dye laser. The use of similar techniques in other elements could eventually result in a number of new lasers in the UV and VUV.
Port-wine stain (PWS) birthmarks are congenital, low-flow vascular malformations of the skin. Lasers are the modality of choice for the treatment of PWS birthmarks, and for most patients the pulsed-dye laser in conjunction with epidermal cooling offers the greatest efficacy and safety. Other light devices, including the 532-nm frequency-doubled Nd:YAG laser, intense pulsed light, 1064-nm Nd:YAG...
P0005 Particular care must be used when characterizing the excitation beam in nonlinear optical experiments compared to linear measurements. By definition, nonlinear optical phenomena depend on the electric field to high order. The higher the order, the more sensitive the observed behavior depends on the input. Extracting a representative nonlinear coefficient from an experiment, for example, b...
We achieve optofluidic lasers with a single molecular layer of gain, in which green fluorescent protein, dye-labeled bovine serum albumin, and dye-labeled DNA, are used as the gain medium and attached to the surface of a ring resonator via surface immobilization biochemical methods. It is estimated that the surface density of the gain molecules is on the order of 10(12) cm(-2), sufficient for l...
Non-ablative skin tightening is a newer approach to tissue remodeling and skin rejuvenation employing noninvasive procedures. These procedures produce less dramatic effects in comparison to traditional ablative laser resurfacing, but also significantly less healing time and patient discomfort. A variety of non-ablative procedures have been developed to achieve skin tightening through dermal the...
Optofluidic dye lasers refer to a class of liquid dye lasers, usually on a microfabricated device, in which the adaptive nature of the liquid gain medium allows the dynamical control of the laser properties. Miniaturizing liquid dye lasers onto a microfluidic device not only results in compact, easy-to-maintain and safe dye laser systems, but also provides unprecedented optical performances suc...
Laser and laser-like assisted facial rejuvenation has become very popular during the last decade. Although a myriad of techniques are available, such approaches can be divided into four basic approaches. There are those that (i) ablate the epidermis, cause dermal wounding, and provide a significant thermal effect (CO(2) lasers); (ii) ablate the epidermis, cause dermal wounding, and minimal ther...
Tunable narrow-linewidth lasers first became commercially available around 20 years ago with the development of etalon-narrowed CW dye lasers from manufacturers such as Coherent and Spectra-Physics. By 1977, high-end research systems could produce linewidths as narrow as 1 MHz under basic microprocessor control. Evolution of these lasers continued with the introduction of higher-gain ring laser...
Objectives: Palmoplantar warts are a challenge to treat. Standard treatment methods include electrocautery, radiofrequency ablation and cryosurgery, carbon dioxide laser, Erbium-doped Yttrium Aluminum Garnet which ablative, invasive, have downtime. Non-ablative lasers like pulsed dye laser long-pulsed Neodymium: Yttrium-Aluminum-Garnet (Nd: YAG) been tried earlier for the of overcome these defi...
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