Nanoscore GmbH

UHV LT-SPM and Raman System USM1400-TERS

UHV LT-SPM and Raman System USM1400-TERS
  • High resolution STM
  • Sample Scanning and fixed tip for static optical focus
  • Tunneling Spectroscopy (STS, IETS)
  • Single molecule spectroscopy
  • Confocal Raman micro spectroscopy option
  • Tip Enhanced Raman Spectroscopy (TERS)
  • Single molecule spectroscopy

STM

Scan Range at RT

( X / Y / Z)  =  ( 5 / 5 / 0.4 ) μm

Scan Range at 4K

( X / Y / Z)  =  ( 1 / 1 / 0.15 ) μm

Coarse Range

2mm in X and Y

Cryostat

‘open deck’ design leaving space for close-up Raman optics

Space for customised in-situ optical elements – ‘optical bench’ on cold deck

Cryo vessel plus cold stage with flow cooling and counter heating flow cooled radiation shields

Operation between 2.5K and 4K by flow control through a needle valve

L4He  operation up to 80K by counter heating

LN2  operation from  80K up to room temperature

Tip Enhanced Raman Spectroscopy

Integrated solution with TII Nanofinder FLEX Raman Spectrometer (ambient)

in UHV focussing lens (aspherical (NA 0.3); on XYZ piezo positioner for optimal focus).

uhv-usm1400-ters-raman-spec

 

Spectrometer data

f = 350 or 500mm, F = 3.8

Spectral resolution

2cm-1 at 550nm, 1200G/mm

Laser options

Nd:YAG (532nm, 25mW);  LD (785nm, 40mW);
customisations on request

UHV System

Load Lock Chamber, Preparation Chamber, STM Chamber

Options

E-Beam Heating for sample and tip
Argon Ion Sputter Source
Cooled Manipulator for Preparation Chamber
LEED,
deposition sources