ARP is the industry leader in te-rahertz (THz) technology. ARP’s proprietary technology offers the world’s widest THz spectral range and highest (CW) power (not pulsed).

1. Terahertz Sub-Surface Nano- Why terahertz?
Scanner/3D Imager The terahertz (THz) portion of the elec-
tromagnetic spectrum (0.1 THz to 30
Semiconductor industry—used for de-
THz) provides unique features for ma-
fects detection and identification of terials characterization (Note: 1 THz =
causes of wafer rejection. May also be 1000 GHz). Products and Services
used for wafer polishing (CMP) process
THz radiation can penetrate most ma- ARP is the industry leader in te-
control. terials; thus, it can interrogate surfac- rahertz (THz) technology.
Biomedical industry—used for sub- es, sub-surface, and interior layers of
ARP’s proprietary technology offers
surface imaging of skin, teeth and other a multi-layered material.
the world’s widest THz spectral range
tissues. Imaging can be done in-vivo or Unlike X-ray, THz is non-ionizing and and highest (CW) power (not pulsed).
ex-vivo. This is important for early de- does not damage delicate features. It
APR’s scanning, imaging, and time-
tection of melanoma, for example. is safe for live imaging on humans.
domain instruments are used in
Other industry—various defects can be THz radiation is highly sensitive and industrial and academia research.
identified and quantified: inclusions, can detect nanometer-size defects.
ARP can provide a custom-made
cracks, particles , non-uniformity, paint ARP’s proprietary smart measurement instrument to address your needs.
layer thickness, coating thickness, instrument systems can provide pre-
APR can provide THz R&D services
coating penetration, paper thickness, cise characterization of wafers, skin,
on a contract basis, to fit your needs
etc. and other substrates.
and budget.
ARP’s THz scanners are non-contact,
APR can help you solve your knotty
non-invasive measurement system,
materials characterization problems.
with an adjustable stand-off distance.
Applications
ARP offers services for application de-
velopment in areas of customer needs
ARP will install custom manufactured
machines in the customer premise.
For pricing and testimonial
Terahertz surface tomogram of a substrate
please contact:
Anis Rahman, PhD Terahertz 3D image revealing defects in a wafer
Applied Research & Photonics, Inc. Applied Research & Photonics, Inc.
470 Friendship Road, Suite 10 470 Friendship Road, Suite 10
Harrisburg PA 17111 USA Harrisburg PA 17111 USA
Phone: +1-717-623-8201 Phone: +1-717-623-8201
Fax: +1-717-566-1177 Fax: +1-717-566-1177
E-mail: info@arphotonics.net E-mail: info@arphotonics.net
http://arphotonics.net
A micro-bubble inside an epoxy disk http://arphotonics.net

2. Terahertz Time-Domain Spec- Terahertz Scanning Reflectometer Terahertz Imaging System
trometer (TeraSpectra) (TeraScanR) (TeraImager)
ARP’s TeraSpectra is The TeraScanR is used for Terahertz imager can see through boxes
used in studies of mo- non-invasive transdermal and opaque packages. Thus, this tech-
lecular properties of characterization (also called nology has applications for scanning
materials or interac- thickness profiling). It may packages and envelope for and security.
tions between two or be used for characterization ARP has developed a remote detection
more materials. of transdermal delivery of system for mobile surveillance (e.g., hid-
TeraSpectra is used in drugs, personal care prod- den gun from a patrol vehicle).
analytical laboratories, pharmaceutical ucts, and also in quality
manufacturing, quality control, and control. Moreover, this is a general meth-
od that is applicable to any substrate and
more.
analyte combinations, thus help charac-
Spectral characterization is available terization of just about any substrates.
for specimens in solid, liquid, or gase- Examples include:
ous form. TeraSpectra can be config-
Transdermal drug delivery
ured to accommodate a variety of sam-
Permeation kinetics of analytes
ples and sizes.
Moisture permeation in substrates
TeraSpectra reproduces features found Direct quantitation of diffusion kinetics
in IR/Raman spectroscopy and identi- Other substrate-analyte combination.
fies features not seen by other tech- A hidden metallic shape inside a bag revealed
niques. Having a resolution of a few nm, it offers with THz imaging. Picture taken in reflection
precise profiling of concentration distri- from ~10 feet away by 3rd party camera.
TeraSpectra opens the door to poten- THz source is an EO dendrimer based fixed
bution along the thickness of substrate in
tially discover new features of materials non-contact fashion. power source ~10 mW, CW.
and new phenomena.
Terahertz Dynamic Analyzer
This instrument is used for accurate
characterization of helmet and body
armor material. These multi-laminate
materials' interior layers need to be
measured with very high speed system
that can only be done with terahertz
dynamic ballistic analyzer. A number
of parameters may be extracted:
Maximum deformation
Absorbance spectrum of polyethylene (PE). For Depth scan of stratum corneum (SC). Permeation Time to maximum deformation
samples prepared on a PE card, this spectrum will saturation curve (blue) subtracted from reference Relaxation time
(red) yields the profile of analyte (hydrocortisone,
serve as the background. Deformation speed
HC) in the skin (green); more HC penetrate the SC.