Large Scanning TCT
Large Scanning-TCT has vertical placement of the optical system and large and robust stages that can carry heavy load. The mounting surface is cooled by a combination of several Peltier elements with the combined power of 200W. The mounting plane is much larger and allows also for wider range of movements. Performance wise the properties of both systems are similar.
| Component | Parameter | Properties |
|---|---|---|
| Laser | ||
| Laser diode | ||
| wavelength: | 660 nm or 1064 nm (optional others on demand) | |
| pulse power: | few m.i.p. - 100 m.i.p. (equivalent in 300 micron Si) | |
| pulse width: | <350 ps - 4000 ps (tunable) | |
| coupling: | single core fibre | |
| Driver | ||
| control: | with PC over USB | |
| running mode: | single pulse: 50 Hz - 1MHz | |
| pattern mode: mHz to 100 kHZ | ||
| 1024 bits deep sequence of pulses | ||
| minimum distance between two pulses 440 ns | ||
| external control: | external NIM logical signal | |
| I/O: | ext. trigger in/trigger out MC/trigger out laser | |
| Optics | ||
| beam spot (FWHM): | <11 microns@1064 nm, <8 microns@660 nm | |
| coupling: | fibre coupled | |
| attenuation: | through collimator on beam-expander | |
| Mechanics | ||
| experimenal box: | 78 cm x 60 cmx 60 cm (HxWxL) | |
| translation: | 3-axis computer controlled | |
| load/stage: | 50 kg | |
| moving range: | 10 cm x 10 cm x 10 cm (x,y,z) | |
| position resolution: | < 1 micron | |
| Control: | via USB | |
| Electronics | ||
| amplifier: | 53 dB | |
| Bias-T range: | >1000 V | |
| frequency range: | <0.3 MHz->3000 MHz | |
| Mounting table | ||
| cooling type: | Peltier element | |
| heat remover: | water / inlets provided | |
| cooling power: | 200W (4x50W) - dT>40C | |
| test sample box: | 2.5x3 cm2 - testing box | |
| mounting plane: | 20x20 cm2 | |
| Software | ||
| Full DAQ: | adaptation for specific oscilloscope, power source on demand | |
| analysis software: | root based package |