Ultrafast System / 鼎昕科技(股)公司

Ultrafast System



		monochromator; selected photon counting PMT; electronics; Windows based Lumex 3.1 software; installation, test measurements and personnel training.


		FOG100 Fluorescence Up-Conversion System Sum frequency generation (up-conversion) is used in the femtosecond optically gated (FOG) fluorescence kinetic measurement system FOG100 to achieve a temporal resolution of better than 100 femtoseconds. FOG100 is the first complete measurement system for femtosecond and picosecond lifetime and kinetic spectroscopy. It has been designed to be matched with any type of femtosecond oscillator or oscillator - amplifier system operating at > 1 KHz pulse repetition rate. The FOG100 includes optical unit together with 2-ns optical delay line; single or double


		Detection of laser induced fluorescence with < 100 fs temporal resolution. Covers fluorescence phenomena from femtoseconds to 2 ns. Fluorescence kinetic measurements in solutions, vapours, thin films and solid samples. Recommended laser pulse repetition rate: 1 KHz - 100 MHz


		Standard configuration designed for femtosecond Ti:sapphire oscillator. Second harmonic generator is included. Option wavelength conversion unit for third harmonic generation Anisotropy kinetic measurements.


		ExciPro-D The ExciPro-D system is used in femtosecond or picosecond pump-probe absorption spectroscopy for transient absorbance (optical density) changes measurements. Two photodiode arrays are placed after an imaging spectrometer to measure probe and reference spectra, originating from femtosecond white light (continuum) generator. Photoinduced optical density changes are calculated from probe and reference spectra measured before and after the sample excitation.


		The ExciPro-D system configuration: Imaging spectrometer Multi-channel detector head, containing two photodiode arrays and adapted to the spectrometer 2-ns optical delay line Control unit, connected to a computer via serial port Photodiode for the system synchronization and pump power measurements Mechanical shutter (for 100 Hz - 10 Hz pulse repetition rate) Mechanical chopper (for 1 kHz - 100 Hz pulse repetition rate)


		ExciPro 1.02 software Photodiode array and readout specifications: Detector type: linear photodiode array Number of pixels: 1024 Pixel pitch: 25 mm Pixel height: 2.5 mm Spectral response range (10% of peak): 200 - 1000 nm Typical operation temperature: 25oC 14 bit ADC


		Dynamic range: 5000 Pulse repetition rate: up to 1 kHz Sensitivity (at the maximum of photodiode array spectral sensitivity): 2 x 104 photons / (pixel x count) The ExciPro-D gives 10-5 DOD (rms) optical density changes sensitivity, measured as a base line noise when photodiode arrays are illuminated with continuous wave incoherent (lamp) light.


		MPA50 Femtosecond Multipass Ti:Sapphire Amplifier MPA50 Ti:sapphire amplifier system is based on the two-mirror confocal multipass Ti:sapphire amplifier configuration designed by CDP Corp. for effective femtosecond pulse amplification in different active media. MPA50 is a complete amplifier system containing pulse stretcher, multipass amplifier, pulse compressor, pulse picker and synchronisation electronics.


		Two-mirror confocal design 8-pass configuration Amplification of 30-fs pulses Single-shot autocorrelator (option) Harmonic generators (option) Nd:YAG pump laser is required TISSA20 seed laser is recommended Specifications: Output pulse width: < 50 fs for TISSA20 seed pulses


		Operation wavelength: 780 - 840 nm Pulse repetition rate: 10 - 50 Hz, 1 kHz Output pulse energy: 1.0 mJ at 10 - 50 Hz, 0.3 mJ at 1 kHz Output polarization: horizontal Lotis LS series of frequency doubled Nd:YAG laser is recommended for the amplifier pumping at 10 - 50 Hz. Please, contact us about recommended pump laser for 1 kHz operation.