Laser excitation
Sensitive SERS nanotags for use with 1550 nm (retina-safe) laser excitation
... Figure 1 – SERS comparison study between the commercial nanotag and the chalcogenopyrylium nanotags 1 and 2 (100 nm AuNPs plus dyes 1 and 2 (10 µM)). All the nanotags had a concentration of 3.4 nM. A laser ...
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Influence of Interface Thermal Resistance on Relaxation Dynamics of Metal-Dielectric Nanocomposite Materials under Ultrafast Pulse Laser Excitation
... [14]. This earlier, known as Kapitza resistivity, is due to the contact between two materials and provokes a temperature jump at interface when thermal energy flux passes through interface. So this effect plays a crucial ...
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Fiber-optic triggered release of liposome in vivo: implication of personalized chemotherapy
... without excitation) as shown in Figure ...under laser excitation significantly enhanced the permeability of the liposome and triggered more efficient ...
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Cyanobacteria use micro optics to sense light direction
... localized laser excitation that was only slightly brighter than the focused image of the light source (Figure 4, Video ...specific excitation of one edge of the ...nm laser light focused on ...
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Laser selective excitation of praseodymium ions in hydrogenated fluorite crystals
... site in SrF :Pr 3 +:D- showing local mode vibronic lines 2 associated with second harmonic vibrations coupled to the D crystal field level.. Laser excitation of a praseodymium doped SrF [r] ...
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Novel Light Emitting Mechanisms Originating from Graphene Plasmons Near and Far from Equilibrium
... We demonstrate that the far-field intensity of the plasmon emission processes can be enhanced by placing engineered metastructures on graphene surface. Gold nanodisks (NDs) were fabricated by patterning onto a PMMA ...
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All optical flow control of a polariton condensate using nonresonant excitation
... resonant excitation scheme used in ...the excitation laser and, beyond that, the number of laser beams impinging on the sample scales with the number of transistors ...nonresonant laser ...
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Rabi oscillations in a cavity-quantum dot system
... pulsed excitation which are out of phase with the Rabi ...pulsed laser excitation at low ...pulsed laser is required since multi-photon effects also depend heavily on the pulse du- ...
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Analysis and differentiation of seminal plasma via polarized SERS spectroscopy
... polarized laser excitation had the best sensitivity ...nonpolarized laser excitation had the highest specificity ...polarized laser excita- tion exhibited a magnitude of diagnostic ...
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Modal analysis of laser vibrated structures
... The fibre optic vibration sensor was developed to investigate the modal resonant frequencies of a variety of large and small mechanical structures under laser excitation [1]. The fibr[r] ...
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Luminescence properties of electron hole droplets in pure and doped germanium
... The spectrum is qualitatively similar to that observed in the laser excitation from pure material and electrical injection in the surface p-i-n structure.. Although the features of the r[r] ...
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Photoacoustic for Oral Soft Tissue Imaging based on Intensity Modulated Continuous-Wave Diode Laser
... diode laser with a wavelength of 532nm and output peak power of 200mW was used as an excitation ...The laser beam was focused onto the imaged sample by using a convex lens (focal length ...focused ...
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Random Laser of R6G Dye and TiO2 Nanoparticals Doped in PMMA Polymer
... random laser (RL) under second harmonic Nd: YAG laser excitation show that the values of bandwidth at full width half-maximum (FWHM) and the threshold energy are about 9 nm and 15 mJ respec- tively, ...
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Solid state spectroscopy: laser selective excitation studies of neodymium
... 10 K fluorescence spectrum of the CaF2 : N d3+ C 4v p- centre with laser excitation at 17385 in air cm- 1 showing fluorescence transitions caused by upconversion processes... LIST OF FIG[r] ...
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Radiation trapping in a dense cold Rydberg gas
... from laser excitation and multiple ...different excitation mecha- nisms for each part of the ...that laser excited Rydbergs are created at the edge of the cloud, whereas multiple scattering ...
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Development of long pulse Nd. YAG laser system
... The energy transmission in flashlamp application can be controlled by introducing semiconductor switch. The switch is electronically monitored by controller system. Several researches has been conducted to improve the ...
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On-chip resonantly-driven quantum emitter with enhanced coherence
... the laser 27 opens a route to building arrays of QDs emitting identical photons into complex quantum photonic ...pulsed laser 10 , deterministic on-demand emission should be ...
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Identification of Near-Field and Far-Field Using Confocal Microscopy Setup for Optical Sensing Applications
... The presence of near-field indicates the existence of evanescent waves, which is one of the important requirements for the development of an optical sensor. This study was carried out t o identify the presence of ...
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Selective Excitation of Terahertz Magnetic and Electric Dipoles in Er3+ Ions by Femtosecond Laser Pulses in ErFeO3
... Fig. 3. (Color online). The geometry of the optical pump/THz emission experiment. The direction of the laser pulse propagation of and the THz emission; the measured polarization of the THz electric field are shown ...
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Cavity-enhanced photoacoustic sensor based on a whispering-gallery-mode diode laser
... WGM-diode laser (OEwaves, USA, OE4023- 153160-PA02-FM100) has an ultra-narrow linewidth of <200 Hz for 10 µs and good tunability in the wavelength range of 1529 to 1532 nm with an output power of 4 mW af- ter ...
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