Imaging at 3.4 Thz with a quantum-cascade laser.
We have assembled a single-frequency imaging system at 3.4 THz with a quantum-cascade laser. Images of electronic and biological applications are demonstrated. We operate the laser with a peak output power of 2.5 mW at a 7% duty cycle and a 22 K operating temperature. The minimum spot size is 340 microm. The signal is detected with a single-element deuterated triglycine sulfate detector, and images are captured by scanning of the sample.
Chamberlin
Danielle R
DR
Agilent Laboratories, Palo Alto, California 94304, USA. danielle_chamberlin@agilent.com
Robrish
Peter R
PR
Trutna
William R
WR
Scalari
Giacomo
G
Giovannini
Marcella
M
Ajili
Lassaad
L
Faist
Jerome
J