Laboratory work is an essential part of our research. Some of our more important labs are:

Great Hall of Acoustics

The "great hall" really designates a laboratory area giving access to several special rooms. These are primarily intended for measurements of sound power, sound transmission through walls, floors, and windows, as well as measurements of the sound absorbing characteristics of different materials. A large area is also available for general experimentation where typically parts of ventilation systems and other flow machinery might be studied for noise generation. A carpenters workshop is situated in this area.

ANA-lab

In modern communication and/or radar systems there are a lot of components that have to be characterized and measured. The Network Analyzer Laboratory (ANA-lab) is very important for doing so.
The lab is equipped with - Agilent 8510C Automatic Network Analyzers covering the frequency range up to 50 GHz.
There are two Cascade probe stations capable of doing on wafer measurements of integrated circuits.
In addition there is a Focus load-pull system for characterizing power amplifiers in the frequency range of 2-18 GHz.
General equipment such as signal generators, oscilloscopes and spectrum analyzers are also available.

Antenna Laboratory

In the antenna laboratory there is an anechoic chamber of dimensions (10x6x4m) for the 1-20 GHz frequency range.
The chamber is equipped with a 3-axis motion controller for antenna pattern measurements. Test instrumentation up to 50 GHz.
There is also equipment for radar cross-section measurements and scattering studies

Aura-lab

 

Biomedical optics

Biomedical optics is a field with high experimental activity. Clinical studies are often carried out in cooperation with St. Olav’s Hospital, using their laboratory facilities. However, much of our research is still carried out at the optics labs at our department. We have four labs equipped for absorption- and reflection spectroscopy in the wavelength region 190-1700 nm (UV, VIS and NIR). Equipment for hyperspectral imaging in the wavelength region 400-1000 nm will be installed during 2006.
We also have various high power lasers, for example a CO2 laser, an argon laser, an argon pumped dye laser and a CW Nd:Yag laser.

Ekkofritt

 

Ferroelektrisk lab

 

FT-IR

 

Heterodyne Interferometry-lab

In the interferometry lab we use the phenomena interference to measure small vibrations. It is of great importance to characterize micro- and nanostructures since many uncontrolled errors may occur during fabrication. We use a 532 nm laser, that is green light.
Interference occurs when two light paths overlap. We get constructive interference (i.e. high light intensity) if the two light paths are exactly in phase, whereas we get destructive interference (no light at all) if the two light paths are π out of phase. If we now set a vibrating element (for example an ultrasound element) in one of the light paths, the interference pattern (i.e. the intensity) will change as a function of the amplitude of the vibrating element. By using a photo detector we can record this intensity variation, and use this to calculate the amplitude of the vibration. We measure amplitudes as small as 7 picometer!

Koherentlab

 

Kretslab 1

 

Kretslab 2 (Circuit Characterization Lab 2)

Circuit Characterization Lab 2 contains advanced instruments for measuring nanoscale CMOS circuits and other analog components. The core of the lab is a Cascade probe station for on-wafer measurements of integrated circuits. This probe station is optimized for extreme low current values (down to a few femto-amperes) and is equipped with a thermal controller such that the circuits can be tested in the temperature range -55 – 200°C. Available instruments in the lab include a Keithly SCS 4200 for DC measurements, Agilent 4284A for CV measurements, Agilent 35670A Dynamic signal analyzer and a Rohde & Schwarz network analyzer.

Laserlab

 

MBE-lab

 

Micro Assembly

 

Midi-lab

 

Multimedialab

 

NALOS

 

Pianolab

 

PLD

 

Renromslaboratoriet

 

 

SAW-lab

Sputter-tynnfilmlab

 

 

Taklaboratoriet (Roof-lab)

On the roof top of our department there is an outdoor antenna measurement range.
This range is well suited for measurements in the lower frequency range.
The lab also consists of several indoor rooms where the instrumentation is located.
At the roof several antennas are/can be located. This is antennas for communication system (satellite) measurements and navigation system (e.g. GPS) test. At the roof lab a GPS simulator is also located.