Terahertz Sub-Surface Nano- Why terahertz? Scanner/3D Imager The terahertz (THz) portion of the elec- tromagnetic spectrum (0.1 THz to 30Semiconductor 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 Servicesused 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 offerssurface imaging of skin, teeth and other a multi-layered material. the world’s widest THz spectral rangetissues. 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 inOther 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-madecracks, 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 servicescoating penetration, paper thickness, cise characterization of wafers, skin, on a contract basis, to fit your needsetc. 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: firstname.lastname@example.org E-mail: email@example.com http://arphotonics.net A micro-bubble inside an epoxy disk http://arphotonics.net
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 boxesused in studies of mo- non-invasive transdermal and opaque packages. Thus, this tech-lecular properties of characterization (also called nology has applications for scanningmaterials 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 detectionmore 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 qualitymanufacturing, quality control, and control. Moreover, this is a general meth- od that is applicable to any substrate andmore. 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 deliveryured to accommodate a variety of sam- Permeation kinetics of analytesples and sizes. Moisture permeation in substratesTeraSpectra reproduces features found Direct quantitation of diffusion kineticsin IR/Raman spectroscopy and identi- Other substrate-analyte combination.fies features not seen by other tech- A hidden metallic shape inside a bag revealedniques. 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 intially 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 deformationAbsorbance spectrum of polyethylene (PE). For Depth scan of stratum corneum (SC). Permeation Time to maximum deformationsamples 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.