Information the Equipment Can Provide

The confocal Raman imaging system alpha300 R from Witec offers the unique ability to acquire chemical information non-destructively with a resolution down to the optical diffraction limit (~ 200 nm). This allows to observe and analyze the distribution of different phases within a sample in ambient conditions without specialized sample preparation. Because of the confocal setup, it is not only possible to collect information from the sample surface, but also to look deep inside transparent samples and even obtain 3D information.

System Characteristics:

• Available lasers: 488, 532 and 785 nm
• Laser intensities (adjustable) at the sample position:
  • 448 nm: ~5 mW max
  • 532 nm: 10 mW max
  • 785 nm: 100 mW max
• The system is equipped with two 300 mm focal length spectrometers
• Microscope Objectives: 10, 20 (3mm WD), 50 ans 100X (0.25 WD)
• Both Stokes and Anti-Stokes lines can be collected for the 532 nm laser

Fees and Policies

• UT Users: $32/hour
• Higher Education/State Agencies: $89/hour
• Corporate/External Users: $89/hour

To become a new user of this facility, please read the Instrument Reservation Information page. If you are already a user you can make a reservation in FBS.

Instrument Capabilities

The Horiba fluorimeter can be used for fluorescence as well as lifetime measurements.

Key features:

• The excitation sources include a 450 W ozone-free Xenon arc lamp, a flash lamp, and pulsed nanoLEDs.
• The maximum excitation wavelength is 660 nm.
• The system is equipped with two detectors with ranges from 250 up to 1050 nm (S) and 950 to 1400 nm (T).
• Spectral resolution of 0.1 nm.
• The system includes a cuvette holder for solutions and a holder for solid state samples.
• Motorized polarizers for anisotropy measurements
• The software will calculate anisotropies of samples, along with anisotropy decay using software-controlled polarizers.
• Time resolution of 300 ps for lifetime measurements using pulsed LED light sources covering a broad spectral range (see below)
• NanoLEDs for 330 nm, 370 nm, 402 nm, 442 nm, 482 nm, 561 nm, 613nm, 635 nm and 980 nm.

Fees and Policies

• UT Users: $32/hour
• Higher Education/State Agencies: $89/hour
• Corporate/External Users: $89/hour

Traning

Users should register for the required in-person training course through UTLearn.

Instrument Capabilities

The Cary 5000 UV-VIS NIR Spectrometer is a double beam, rapid scanning, high performance spectrometer with a wavelength range from 175 to 3300 nm useful for studying a variety of solution or semitransparent solids.

Key features:

• Spectral range: 175-3300 nm
• Measures beyond 8.0 absorbance units
• Variable slits widths (down to 0.01 nm)
• Operable in either single or dual beam configurations
• Cuvette and solid-state sample holders available

The system is also equipped with a diffuse reflectance accessory (DRA) module for reflectance measurements.

• 150 mm sphere
• Measurement range: 250 to 2500 nm

Fees and Policies

• UT Users: $32/hour
• Higher Education/State Agencies: $89/hour
• Corporate/External Users: $89/hour

Traning

Users should register for the required in-person training course through UTLearn.