Hamamatsu News 2-2016 - page 40

LASER PRODUCTS
40 News 2016 Vol. 2
Terahertz Photoconductive Switch
G12864-01/-02
ND Inspection
Industry
Security
Optical Comms
Semicon Prod.
Analytical
Measurement
Drug Discovery
Life Science
Medical
Academic Res.
New
Chip-carrier type terahertz photoconductive switch
The spectral region between light and electrical waves is known as terahertz
(THz) region from the viewpoint of its frequency. This far-infrared spectral region
has recently attracted considerable attention for its potential applications
in spectroscopy, imaging, telecommunications, medical analysis, and so on.
THz photoconductive switch (sometimes called a photoconductive antenna)
G12864 series is able to emit and/or detect THz wave by illuminating an
ultrafast pulse laser. Small element size (6 x 10 mm) helps easy installation in
a system.
Difference from conventional product
Allows flexible integration with the other components in user's system.
Applications
„
„
Far-infrared spectroscopy
„
„
Material analysis
„
„
Nondestructive and non-contact inspection
„
„
Structure inspection
„
„
Security, etc.
G12864-01/-02
Absolute maximum ratings
Parameter
Symbol
Value
Unit
Applied voltage
V
op
±10
V
Average input optical power*
1,2
P
ave
10
mW
*1 The beam diameter on the chip surface should be larger than 10 μm (1/e
2
).
*2 Use a femtosecond laser with repetition rate from 50 MHz to 150 MHz.
1...,30,31,32,33,34,35,36,37,38,39 41,42,43,44
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