Browsing by Keywords "Laser beams"
Now showing items 1-12 of 12
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1.06μm-1.35μm coherent pulse generation by a synchronously-pumped phosphosilicate Raman fiber laser
(OSA, 2017)Summary form only given. Rare-earth-doped fiber lasers are attractive for microscopy and imaging applications and have developed over the past decades rapidly. They are unable to cover near-infra-red region entirely and ... -
A combinatorial buffered oxide etching method for high-power cladding light stripper
(Institute of Electrical and Electronics Engineers Inc., 2019)High-power fiber lasers have been applied in many areas due to their advantages such as high beam quality, compact structure, flexibility and high efficiency. However, the absorption of the pump light is limited and a ... -
Computer vision based unistroke keyboard system and mouse for the handicapped
(IEEE, 2003-07)In this paper, a unistroke keyboard based on computer vision is described for the handicapped. The keyboard can be made of paper or fabric containing an image of a keyboard, which has an upside down U-shape. It can even ... -
Detection of Calcium-induced morphological changes on RBCs by digital holographic microscopy and blinking optical tweezers
(IEEE, 2016)Ca+2 level in the circulating red blood cells (RBCs) takes part not only in controlling biophysical properties, but also affects the membrane composition, and its morphological and rheological properties. Excessive ... -
Engineering particle trajectories in microfluidic flows using speckle light fields
(SPIE, 2014)Optical tweezers have been widely used in physics, chemistry and biology to manipulate and trap microscopic and nanoscopic objects. Current optical trapping techniques rely on carefully engineered setups to manipulate ... -
Modeling and cross coupling controller development for a 6DOF laser micro-machining system
(IEEE, 2017)In recent years, studies on manufacturing systems have proved the importance of cooperation of positioning systems with laser cutting technology. The performance of the manufacturing system can be improved by utilizing ... -
Phase-matched self-doubling optical parametric oscillator
(Optical Society of America, 1997-03-01)We report a synchronously pumped intracavity frequency-doubled optical parametric oscillator that employs a single KTiOPO4 crystal for both parametric generation and frequency doubling. Both nonlinear processes are phase ... -
Photoacoustic effect as a liquid absorbance detector
(Optical Society of America, 1980-09)A theoretical treatment of the photoacoustic effect for a liquid enclosed in a cylindrical cell is given. Simple analytical expressions for the photoacoustic signal are derived for cw and pulse modulation schemes. Modulation ... -
A self-doubling optical parametric oscillator based on aperiodically-poled lithium niobate
(IEEE, 2001)A self-doubling optical parametric oscillator (SDOPO) having one-dimensional aperiodic grating structure based on a LiNbO3 crystal was constructed. The structure was designed to quasi-phase-match both second harmonic ... -
Spatio-temporal evolution of ultrashort pulses in graded-index multimode fiber at normal dispersion
(IEEE, 2017)Summary form only given. A novel nonlinear phenomenon at normal dispersion regime inside of graded-index multimode fiber (GRIN MMF), geometric parametric instability (GPI), can be observed while propagating beam experiences ... -
Vision-based continuous Graffiti™-like text entry system
(SPIE, 2004)It is now possible to design real-time, low-cost computer version systems even in personal computers due to the recent advances in electronics and the computer industry. Due to this reason, it is feasible to develop ... -
Wireless monitoring of a structural beam to be used for post-earthquake damage assessment
(IEEE, 2018-05-06)Wireless monitoring of a standard reinforced concrete beam is shown in a simply supported beam experiment. The passive nested split-ring resonator (NSRR) probes are attached on the reinforcing bars (rebars) within the beam, ...
