scholarly journals Mask-aligner lithography using a continuous-wave diode laser frequency-quadrupled to 193 nm

2018 ◽  
Vol 26 (2) ◽  
pp. 730 ◽  
Author(s):  
Raoul Kirner ◽  
Andreas Vetter ◽  
Dmitrijs Opalevs ◽  
Christian Gilfert ◽  
Matthias Scholz ◽  
...  
Keyword(s):  
Diode Laser ◽  
Continuous Wave ◽  
Laser Frequency ◽  
Mask Aligner ◽  
193 Nm

scholarly journals Medical Applications of Diode Lasers: Pulsed versus Continuous Wave (cw) Regime

Micromachines ◽  
2021 ◽  
Vol 12 (6) ◽  
pp. 710
Author(s):  
Michał Michalik ◽  
Jacek Szymańczyk ◽  
Michał Stajnke ◽  
Tomasz Ochrymiuk ◽  
Adam Cenian
Keyword(s):  
Diode Laser ◽  
Continuous Wave ◽  
Diode Lasers ◽  
Short Review ◽  
Medical Application ◽  
Medical Applications ◽  
Therapeutic Effects ◽  
Pulsed Mode ◽  
Medical Therapies

The paper deals with the medical application of diode-lasers. A short review of medical therapies is presented, taking into account the wavelength applied, continuous wave (cw) or pulsed regimes, and their therapeutic effects. Special attention was paid to the laryngological application of a pulsed diode laser with wavelength 810 nm, and dermatologic applications of a 975 nm laser working at cw and pulsed mode. The efficacy of the laser procedures and a comparison of the pulsed and cw regimes is presented and discussed.

Subpicosecond accumulated photon echoes using a continuous-wave multimode diode laser

1989 ◽  
Vol 14 (12) ◽  
pp. 633 ◽  
Author(s):  
Hiroki Nakatsuka ◽  
Ryuzi Yano ◽  
Yoshinori Matsumoto ◽  
Kazuki Inouye
Keyword(s):  
Diode Laser ◽  
Continuous Wave ◽  
Photon Echoes

Continuous-wave operation of long-wavelength quantum-dot diode laser on a GaAs substrate

1999 ◽  
Vol 11 (11) ◽  
pp. 1345-1347 ◽  
Author(s):  
A.E. Zhukov ◽  
A.R. Kovsh ◽  
V.M. Ustinov ◽  
Yu.M. Shernyakov ◽  
S.S. Mikhrin ◽  
...  
Keyword(s):  
Quantum Dot ◽  
Diode Laser ◽  
Gaas Substrate ◽  
Continuous Wave ◽  
Long Wavelength ◽  
Continuous Wave Operation

scholarly journals Coherent Ray Tracing Simulation Of Non-Imaging Laser Beam Shaping With Multi-Aperture Elements

2019 ◽  
Vol 215 ◽  
pp. 01001
Author(s):  
Raoul Kirner ◽  
Wilfried Noell ◽  
Toralf Scharf ◽  
Reinhard Voelkel
Keyword(s):  
Ray Tracing ◽  
Continuous Wave ◽  
Laser Light ◽  
Traditional Approach ◽  
Statistical Treatment ◽  
Diffraction Theory ◽  
Beam Shaping ◽  
Optical Systems ◽  
Light Sources ◽  
Mask Aligner

The application of laser light sources for illumination tasks like in mask aligner lithography relies on non-imaging optical systems with multi-aperture elements for beam shaping. When simulating such systems, the traditional approach is to separate the beam-shaping part (incoherent simulation) from dealing with coherence properties of the illuminating laser light source (diffraction theory with statistical treatment). We present an approach using Gaussian beam decomposition to include coherence simulation into ray tracing, combining these two parts, to get a complete picture in one simulation. We discuss source definition for such simulations, and verify our assumptions on a well-known system. We then apply our approach to an imaging beam shaping setup with microoptical multi-aperture elements. We compare the simulation to measurements of a similar beam-shaping setup with a 193 nm continuous-wave laser in a mask-aligner configuration.

scholarly journals Minimal Invasive Approach for Lips Venous Lake Treatment by 980 nm Diode Laser with Emphasis on the Aesthetic Results. А Clinical Series

Folia Medica ◽  
2016 ◽  
Vol 58 (2) ◽  
pp. 101-107 ◽  
Author(s):  
Parvan P. Voynov ◽  
Georgi T. Tomov ◽  
Nonka G. Mateva
Keyword(s):  
Adverse Effects ◽  
Diode Laser ◽  
Continuous Wave ◽  
Healing Process ◽  
Basic Knowledge ◽  
Invasive Approach ◽  
Minimal Invasive Approach ◽  
Clinical Series ◽  
Aesthetic Results ◽  
Venous Lake

AbstractIntroduction: A venous lake (VL) is a vascular lesion with common occurrence in many patients, manifested as a dark blue-to-violet compressible papule, caused by dilation of venules. The main reasons for the treatment of VL are aesthetic. The haemorrhaging episodes or impairment of oral normal functions are also under considerations. Treatment of lip VL includes surgical excision, selective photocoagulation, cryotherapy, sclerotherapy and electrodessication. The high-intensity diode laser is an option. The 980 nm diode laser is selectively absorbed by haemoglobin and selectively destroys blood vessels, minimising injury to the surrounding healthy skin.Aim: The purpose of this study was to evaluate the effectiveness of diode laser in the treatment of VL lesions with the accent on the postoperative defects and aesthetic results.Methods: 35 patients aged 37 to 71 were included in this study. A 980 nm diode laser was used in noncontact mode, under local anaesthesia in continuous wave (2-3W, for 20-60s). All patients received only one procedure.Results: Healing process was completed within 2 to 4 weeks after treatment with no scarring. None of the typical adverse effects were observed in the process of healing.Conclusions: Selective photocoagulation is an effective method for treatment of VL. Lower morbidity, minimal patient discomfort and satisfactory functional and aesthetic results are favourable for patients. To optimise the results and to reduce the adverse effects, basic knowledge on lasers and laser-tissue interactions is requisite.

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