Large Scanning TCT

Large Scanning-TCT aims for the same applications as Scanning TCT. The main difference with respect to the latter is the vertical placement of the optical system and larger and more 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.

Specifications:
Component Parameter Properties
Laser
Laser diode
wavelength: 660 nm, 1064 nm (optional others)
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