The University of Hong Kong
University Central Facilities
Science and Engineering Core Service (Metaphase)

J A Woollam RC2
Ellipsometer

Ellipsometer with dual rotating compensator technology. The RC2 is a near-universal solution for the diverse applications of spectroscopic ellipsometry and Mueller matrix ellipsometry. It covers wavelengths from the ultraviolet (down to 210 nm) to the extended near infrared (up to 2500 nm).

Attachments:

- Fully automated sample translation or rotation stage for 300 x 300 mm mapping

- Automated variable angle transmission stage for transmission measurements

- Linkam Temperature Stage (Temperature range: -70°C to 600°C)

Agilent Cary 5000
UV-VIS-NIR Spectrophotometer

Agilent Cary 5000 UV-VIS-NIR Spectrophotometer deliveries the measurements of transmission and reflection in the UV, visible, and near-IR (190 nm to 3300 nm). Modes of measurement include absolute specular reflection, diffuse scattering, . glossy scattering, direct transmission, scattered transmission and partial scattered transmission.

Attachments:

- Agilent Cary Universal Measurement Accessory (UMA)

- Aglient diffuse reflectance accessory (Integrating spheres) measurement range 250 nm - 2500 nm

Edinburgh FLS1000
Steady State & Time-resolved Photoluminescence Spectrometer

Edinburgh FLS1000 is a modular fluorescence and phosphorescence spectrometer for measuring spectra from the ultraviolet to the mid-infrared spectral range (up to 5,500 nm), and lifetimes spanning from picoseconds to seconds. Mode of Operation included spectral (Single Photon Counting), phosphorescence lifetime (Time-Resolved, Single Photon Counting, Multi-Channel Scaling) and fluorescence lifetime (Time-Correlated, Single Photon Counting)

Attachments:

- Excitation sources (Continous sources): Xenon Arc Lamp (230 nm to >1000 nm)

- Excitation sources (Picosecond pulsed diode laser): 375nm (65ps @10MHz), 450nm (90ps @10MHz)

- Excitation sources (Picosecond pulsed light emitting diodes): 260nm (90ps @10MHz), 300nm (1000ps @10MHz)

- Detector: NIR-PMT (300 nm - 1700 nm, response with: 800ps) PMT-1700 Performance

- Detector: PMT (185 - 900nm [recommended for operation at 200nm – 870nm], lifetime range: 100ps to 50us) PMT-900 Performance

- Double monochromators (Excitation and Emission)

- Integrating Sphere

- Liquid Nitrogen Cryostat (77K - 500K)

Attolight Allalin
Time-resolved Cathodoluminescence Scanning Electron Microscope

The Allalin is a nanometer resolution spectroscopy instrument, based on a disruptive technology known as quantitative cathodoluminescence that integrates a light microscope and a scanning electron microscope (SEM) into one tool. The Allalin allows for “No Compromise” large field /fast scanning simultaneous SEM imaging with hyperspectral or panchromatic CL maps.

Attachments:

- UV-Visible detector: Andor Newton, 200 - 1060 nm

- Time resolved multichannel detector: (Photocathode sensitivity over the range 200 - 900 nm )

- Nano-positioning stage including

- > Smaract Nanoprobes station (2 nanoprobes for electrical contacting)

- > Liquid Helium Cryostat Temperature from 10 to 320 K with precision 0.1K

- > Electron Beam Induced Current / Electron Beam Absorbed Current / Resistive Contrast Imaging

- Imina Nanoprobes Stage (4 miBot robots)