Non-polarizing cube beam-splitters for near-IR range
50/50 non-polarizing cube beam-splitter from 1.5-5.0 um -
request a quote
Material CaF2
Cube: (a) 1.0 x 1.0 x 1.0 inch
Angle: +/-10 arc min
Scratch/Dig: 60/40
Surface Figure: 1 wave
Clear Aperture: 90%
Angle: +/-10 arc min
Scratch/Dig: 60/40
Coating: R/T is 50/50 +/-15% at 45 degree AOI on the
hypotenuse
AR coating on the entrance and exit surfaces.
50/50 non-polarizing cube beam-splitter from 1.5-5.0 um -
request a quote
Material CaF2
Cube: (b) 2.0 x 2.0 x 2.0 inch
Angle: +/-10 arc min
Scratch/Dig: 60/40
Surface Figure: 1 wave
Clear Aperture: 90%
Angle: +/-10 arc min
Scratch/Dig: 60/40
Coating: R/T is 50/50 +/-15% at 45 degree AOI on the
hypotenuse
AR coating on the entrance and exit surfaces.
CIE division scheme
The International Commission on Illumination (CIE) recommended the
division of infrared radiation into the following three bands:[5]
IR-A: 700 nm–1400 nm (0.7 µm – 1.4 µm)
IR-B: 1400 nm–3000 nm (1.4 µm – 3 µm)
IR-C: 3000 nm–1 mm (3 µm – 1000 µm)
A commonly used sub-division scheme is:[6]
Near-infrared (NIR, IR-A DIN): 0.75-1.4 µm in wavelength, defined by the water
absorption, and commonly used in fiber optic telecommunication because of low
attenuation losses in the SiO2 glass (silica) medium. Image intensifiers are
sensitive to this area of the spectrum. Examples include night vision devices
such as night vision goggles.
Short-wavelength infrared (SWIR, IR-B DIN): 1.4-3 µm, water absorption increases
significantly at 1,450 nm. The 1,530 to 1,560 nm range is the dominant spectral
region for long-distance telecommunications.
Mid-wavelength infrared (MWIR, IR-C DIN) also called intermediate infrared
(IIR): 3-8 µm. In guided missile technology the 3-5 µm portion of this band is
the atmospheric window in which the homing heads of passive IR 'heat seeking'
missiles are designed to work, homing on to the IR signature of the target
aircraft, typically the jet engine exhaust plume.
Long-wavelength infrared (LWIR, IR-C DIN): 8–15 µm. This is the "thermal
imaging" region, in which sensors can obtain a completely passive picture of the
outside world based on thermal emissions only and requiring no external light or
thermal source such as the sun, moon or infrared illuminator. Forward-looking
infrared (FLIR) systems use this area of the spectrum. Sometimes also called the
"far infrared."
Far infrared (FIR): 15 - 1,000 µm (see also far infrared laser).
NIR and SWIR is sometimes called "reflected infrared" while MWIR and LWIR is
sometimes referred to as "thermal infrared." Due to the nature of the blackbody
radiation curves, typical 'hot' objects, such as exhaust pipes, often appear
brighter in the MW compared to the same object viewed in the LW.
Del Mar Photonics - Greyhawkoptics - Infrared Optics from Del Mar Photonics
Infrared Technology: Applications to Electro-Optics, Photonic
Devices and Sensors
A. R. Jha
A complete reference guide to the theory, design, and applications of
infrared technology
Rapid advances in infrared (IR), photonic, and electrooptic technologies have
given rise to sophisticated sensors with important commercial, industrial, and
military applications-from remote sensing, surveillance, and high-resolution TV
to home security systems. This book provides scientists and engineers with a
comprehensive, state-of-the-art guide to the analysis and development of IR,
photonic, and electrooptical devices and systems for specific applications.
Well-known industry expert A. R. Jha compiles and consolidates the latest data
on IR sources and systems, presenting fully referenced technical information
plus numerical examples illustrating performance parameters and design aspects
for an amazingly broad array of applications. Basic IR theory is also provided.
Coverage includes:
* Transmission characteristics of optical signals through the atmosphere,
including effects of scattering, absorption, turbulence, and diffraction
* Performance characteristics and capabilities of various IR sources, including
state-of-the-art laser technologies
* Performance capabilities of IR detectors and focal planar arrays (FPAs) as
well as passive and active IR and electronic devices
* Potential and existing applications in such diverse fields as medicine,
telecommunications, space research, missile systems, and defense IR signature
analysis and measurement techniques
From the Back Cover
A complete reference guide to the theory, design, and applications of infrared
technology
Rapid advances in infrared (IR), photonic, and electrooptic technologies have
given rise to sophisticated sensors with important commercial, industrial, and
military applications–from remote sensing, surveillance, and high-resolution TV
to home security systems. This book provides scientists and engineers with a
comprehensive, state-of-the-art guide to the analysis and development of IR,
photonic, and electrooptical devices and systems for specific applications.
Well-known industry expert A. R. Jha compiles and consolidates the latest data
on IR sources and systems, presenting fully referenced technical information
plus numerical examples illustrating performance parameters and design aspects
for an amazingly broad array of applications. Basic IR theory is also provided.
Coverage includes:
* Transmission characteristics of optical signals through the atmosphere,
including effects of scattering, absorption, turbulence, and diffraction
* Performance characteristics and capabilities of various IR sources, including
state-of-the-art laser technologies
* Performance capabilities of IR detectors and focal planar arrays (FPAs) as
well as passive and active IR and electronic devices
* Potential and existing applications in such diverse fields as medicine,
telecommunications, space research, missile systems, and defense
IR signature analysis and measurement techniques
Key Phrases - Statistically Improbable Phrases (SIPs): (learn more)
absorption region thickness, electrooptic technology, optical commutator,
detection range capability, radiance contrast, various jet engines, pump beam
diameter, using optical technology, domain detectors, peak radiation wavelength,
most critical performance parameter, spectral radiant exitance, high mechanical
integrity, precision weapon delivery, photonic sensors, critical performance
parameters, thermal blooming, peak radiation intensity, severe operating
environments, radiance level, critical performance requirements, optic size,
high detection probability, afterburner operation, spectral radiant emittance
Key Phrases - Capitalized Phrases (CAPs): (learn more)
Laser Focus World, Photonics Spectra, The Infrared Handbook, Commercial
Engineering, Electro-Optics Handbook, Newport Corp, Aerosol Clear Hazy Height,
Halogen Osram, New York, Optoelectronics World, Unit Symbol Notes, Applied
Optics, Superconductor Technology, Technical Report
Infrared Detectors and Systems (Wiley Series in Pure and
Applied Optics)
E. L. Dereniak (Author), G. D. Boreman (Author)
Product Description
This text covers the range of subjects necessary for the understanding of modern
infrared-imaging systems at a level appropriate for seniors or first-year
graduate students in physics or electrical engineering. The first six chapters
focus on fundamental background issues of radiation detection, beginning with
the basics of geometrical optics and finishing with a discussion of the figures
of merit used for describing the signal-to-noise performance of a detector
system. Other topics include radiometry and flux-transfer issues, basic
radiation-detector mechanisms, and random-process mathematics.
The presentation then moves on to specific detector technologies and the
fundamental mechanisms of detection, paying special attention to responsivity
and noise performance. Devices discussed include photovoltaic detectors,
photoconductive detectors, thermal detectors, Schottky-barrier diodes, and
bandgap-engineered photodetectors via multiple quantum wells and superlattices.
The book concludes with a close look at infrared detection systems and related
issues. In the discussion of infrared search systems, the range equation is
developed in terms of the optical and detector parameters of the system. A
separate chapter is devoted to modulation transfer function, a
spatial-frequency-domain description of image quality. The final chapter
describes the design equations for thermal-imager systems in terms of
noise-equivalent temperature difference and minimum resolvable temperature.
Supported and clarified by 470 illustrations and accompanied by an extensive
glossary of the nomenclature, this is an excellent text for graduate and senior
level courses in radiometry and infrared detectors. It is also a valuable
reference for practicing engineers involved in the use, design, analysis, and
testing of infrared detector-based systems.
Infrared Detectors and Systems is a complete, accessible, and timely exposition
of a technology whose applications are increasingly important and widespread.
Based on courses presented by two of the field's leading figures, this book
provides extensive coverage of the background and fundamentals of radiation
detection and goes on to examine specific technologies and systems in depth and,
in some cases, for the first time in print.
Technologies discussed include
* Photovoltaic detectors
* Photoconductive detectors
* Thermal detectors
* Schottky-barrier diodes
* Bandgap-engineered photodetectors via multiple quantum wells and superlattices
Supplemented with 470 illustrations and a complete glossary of the nomenclature,
this is the ideal text for senior- and graduate-level courses in radiometry and
optical detection.
From the Publisher
Two acknowledged authorities in the field describe the optical detection process
and electronics involved in mimicking the eye. Provides a detailed overview of
optical sensors and systems, remote sensing, superlattices, and the electrical
characteristics of various detectors. Covers recent research in new detector
materials and advances in cutting-edge optical detectors.
Key Phrases - Statistically Improbable Phrases (SIPs): (learn more)
photon exitance, blackbody responsivity, blackbody exitance, optical radiation
incident, superconducting transition region, background irradiance, external
transmittance, optically active area, fixed frame time, photon radiance, readout
region, detector resistance, mirror membrane, staring system, spectral exitance,
voltage responsivity, photoconductive gain, current responsivity, extrinsic
photoconductors, afocal telescope, photon irradiance, nonideality factor,
photovoltaic detector, normalized detectivity, superconducting bolometer
Key Phrases - Capitalized Phrases (CAPs): (learn more)
New York, Academic Press, Infrared Physics, Elements of Infrared Technology,
Optical Engineering Press, The Infrared Handbook, Quantum-Well Infrared
Photodetectors, Englewood Cliffs, Infrared System Engineering, John Wiley,
Modern Optical Engineering, Prentice Hall, Wien Displacement Law, Milestone
Series, Modern Physics, Oxford University Press, Physics of Semiconductor
Devices, Bell Syst, Electron Devices, Epitaxial Multilayers, Infrared Design,
Infrared Technology Fundamentals, Optical Radiation Measurements, Quantum Well
Infrared Photodetectors, Solid State Electronic Devices
Need infrared optics? Send us your inquiry for custom quote!
or check our online store
Del Mar Photonics, Inc.
4119 Twilight Ridge
San Diego, CA 92130
tel: (858) 876-3133
fax: (858) 630-2376
Skype: delmarphotonics
sales@dmphotonics.com