搜索结果: 1-14 共查到“工学 Picosecond”相关记录14条 . 查询时间(0.093 秒)
Nonlinear Optical Studies of DNA Doped Rhodamine 6G-PVA Films Using Picosecond Pulses
DNA Thin Films Z-Scan Picosecond Two-Photon Absorption
2013/1/30
We present our results from the measurements of third-order optical nonlinearity in DNA doped Rhodamine 6G/PVA films achieved through Z-scan measurements using ~2 picosecond (ps) pulses at a wavelengt...
Intensity Dependent Nonlinear Absorption in Direct and Indirect Band Gap Crystals under Nano and Picosecond Z-Scan
Direct and Indirect Band Gap Crystals Two Photon Absorption Three Photon Absorption Saturated Absorption
2013/1/30
The nonlinear absorption properties of direct (GaN) and indirect (CdI2) band gap crystals have been studied by using an open aperture Z-scan technique under fundamental (1064 nm) and frequency doubled...
XPM-Induced Spectral Distortion in High Efficiency,Picosecond,Fiber Optical Parametric Oscillators
XPM-Induced Spectral Distortion High Efficiency Fiber Optical Parametric Oscillators
2015/5/15
We describe a 230nm tunable fiber optical parametric oscillator (FOPO) using an 8ps pump laser. The FOPO generates 2-4ps pulses with conversion efficiency as high as 20%. The output spectrum exhibits ...
Picosecond Fiber Optical Parametric Oscillator with 500 nm Tuning Range Using Dispersion-Shifted Fiber
Nonlinear Optics fibers Nonlinear optics four-wave mixing
2015/6/9
We demonstrate a picosecond fiber optical parametric oscillator with a tuning range of 500 nm pumped by a relatively low-cost intensity-modulated pump. Pulses with pulsewidth from 7 ps to 17 ps are ge...
Time lens for Sub-picosecond Optical Pulse Measurement on a Chip
Glass waveguides Nonlinear optics four-wave mixing Nonlinear optical materials Integrated optics materials
2015/6/8
We demonstrated subpicosecond temporal optical imaging based on four wave mixing temporal to frequency domain conversion in a CMOS compatible, high index glass waveguide.
Demonstration of a Photonic Integrator-Based Loadable and Erasable Optical Memory Unit with Picosecond Switching Times
Photonic Integrator-Based Optical Memory Picosecond
2015/7/16
A novel ultrahigh-speed optical memory concept is demonstrated using an FBG-based photonic integrator with ultra-large memory storage-to-switching time ratio (>300). An all-optical memory unit with un...
Picosecond and Sub-Picosecond Flat-Top Pulse Shaping Using Abrupt Taper Interferometers
Abrupt taper interferometer flat-top pulse generation pulse shaping
2016/12/2
A picosecond flat-top pulse shaper using an abrupt taper interferometer is proposed and experimentally demonstrated. A theoretical model based on coupled mode equations is also derived to simulate the...
Excitataion Energy Transfer Processes and Mechanisms in Photosynthetic Antenna System “Analyses by Femtosecond and Picosecond Time-Resolved Fluorescence Spectroscopy”
Excitation energy transfer Photosynthesis Antenna system
2009/6/9
Excitation energy transfer pathways and mechanisms in the antenna systems of oxygenic photosynthetic organisms were discussed from the viewpoint of methodology of analyses. Time-resolved fluorescence ...
Generation of Fiber Tunable High-power Picosecond Laser Pulse
Fiber laser Fiber amplifier Picosecond laser
2009/6/1
A fiber tunable high-power picosecond laser system has been for the first time demonstrated. A gain switch semiconductor laser diode was introduced as seed source, and a multi-stage single mode Yb-dop...
17 ns Tunable Delay for Picosecond Pulses through Simultaneous and Independent Control of Delay and Dispersion Using Cascaded Parametric Processes
Picosecond Pulses Independent Control Cascaded Parametric Processes
2015/8/6
Using cascaded parametric processes, we show that delay and dispersion can be continuously tuned in a simultaneous and independent manner, while the third-order dispersion is suppressed for wideband o...
Transfer of a 1486.3 MHz frequency standard over installed fibre links for local oscillator distribution with a stability of 1 picosecond
standard over installed fibre links oscillator distribution stability
2015/8/4
Details of a local oscillator distribution system over 110 km of installed fibre with an r.m.s. stability of, 1 ps in 1 second, 2 ps in 1 minute and 4 ps in 10 minutes.
Broadband and Enhanced Picosecond Cross-phase Modulation in InGaAs /AlAsSb Quantum Well Waveguides G.W. Cong, R. Akimoto, M. Nagase, T. Mozume, T. Hasama, and H. Is
Broadband Enhanced Picosecond Cross-phase Modulation Quantum Well Waveguides
2015/8/3
Ultrafast cross-phase modulation induced by intersubband excitation was ~2-3times enhanced when tuning probe wavelength from 1640 to 1360nm, showing a ~300nm broadband. Interband dispersion model expl...
Direct amplification of picosecond pulses in erbium fibre to 127 kW peak power without pulse break-up
Direct amplification picosecond pulses erbium fibre
2015/7/30
Picosecond pulses are directly amplified in a core pumped erbium fibre with effective area 1170- μ m 2 to record diffraction limited 67- nJ pulse energy and 127- kW peak power without pulse break-up.
Recent progress in ultrashort-pulse high-power laser technology has resulted in the production of extremely high light intensities approaching 1020 W/cm2. The great non-linear forces generated by the ...