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Product Name: LIBS Broadband Spectrometer System
Product Description
The LIBS2500 Laser-induced Breakdown Spectrometer Sensing Systems are detection systems that permit real-time qualitative measurements of elements in solids, solutions and gases. These broadband, high-resolution systems provide spectral analysis across a wide 200-980 nm range (depending on the system) at a resolution of ~0.1 nm (FWHM).
Features
Broadband, high-resolution spectral analysis (200-980 nm at 0.1 nm resolution)
Real-time qualitative measurements
Sensitivity to parts-per-billion and picogram levels is possible
Applications include materials analysis, environmental monitoring, forensic and biomedical studies, art restoration and more
How the LIBS2500 Systems Work
A high-intensity, pulsed laser beam is focused on the sample area, positioned a few centimeters to a meter from the sample. A single 10 nanosecond-wide laser pulse is all that is needed to excite the sample. When the laser is fired, the high-temperature of the laser creates plasma. As the plasma decays or cools (~1.0 µsec after the laser pulse), excited atoms in the plasma emit light of characteristic wavelengths distinct to the element. All elements emit in the 200-980 nm region. The detection systems use up to seven of our HR2000 High-resolution Miniature Fiber Optic Spectrometers, each with a 2048-element linear CCD array. All spectrometers are triggered to acquire and read out data simultaneously. The detectors in the broadband (200-980 nm) LIBS2500 collect the signal; software included with the system displays the data.
For
more on the LIBS system, see this 2004 feature webcast at SPIE's Defense
Security Symposium.
Also, check out Laser
Induced Breakdown Spectroscopy, edited by Andrzej Miziolek and published
by Cambridge. The book is described as the first comprehensive reference
explaining the fundamentals of the LIBS phenomenon, its history and its
fascinating applications across eighteen chapters written by recognized leaders
in the field.
Advantages of Broadband LIBS Techniques
Most traditional LIBS detection systems have a small spectral range. The LIBS2500 Systems provide broadband spectral analysis. Because the systems are noninvasive, users can perform real-time measurements in situ, within hostile industrial, chemical and biochemical environments -- with little or no sample preparation. Since the LIBS2500s utilize Ocean Optics' HR2000 High-resolution Miniature Fiber Optic Spectrometers, the detection systems are portable and can be interfaced to a notebook PC via a USB port.
Applications
The LIBS technique is useful for a variety of applications:
Environmental monitoring (soil contamination, particulates)
Materials analysis (metals, plastics)
Forensics and biomedical studies (teeth, bones)
Military and safety needs (explosive particles, chemical and biological warfare agents
Art restoration/conservation (pigments, precious/ancient metals)
Laser Needed for LIBS2500
We offer two laser power options from laser industry leader Big Sky Laser Technologies as sources for the LIBS2500. Laser ablation and plasma formation are very specific to the sample matrix, and therefore the power requirements will vary by sample type. For most applications we employ a Q-switched 1064 nm Nd:YAG laser, and for maximum versatility, we recommend a 200 mJ laser with attenuator to adjust the laser power according to the sample matrix. The choice of laser power and wavelength depend on the material being analyzed and the sample’s tolerable damage threshold. The LIBS-LASER is a 50 mJ CFR Nd:YAG laser for metal and thin film samples. The LIBS-LAS200MJ is a 200 mJ CFR Nd:YAG laser for glass and high OH content materials. For liquid samples, contact us about a dual-laser setup, as the high hydrogenation content of the sample tends to quench the initial plasma formation; a second laser is needed to initiate a plasma in the vacuum created by the first laser event.
Additional Features
The LIBS2500 is portable and operates with any 32-bit, USB-compatible Windows PC. The systems interface to a PC via a USB port for easy plug-and-play use. We provide OOILIBS Application Software for operating the LIBS2500 and for firing the laser. With OOILIBS software, the user has spectral-saving and data-logging capabilities. OOICOR Correlation Software -- developed with the University of Florida -- provides instant material identification when using the LIBS2500.
LIBS-SC Sample Chamber
The LIBS-SC Sample Chamber is a key component of a LIBS system and is designed to perform various functions safely and in clear view of the sample. The LIBS-SC has an eyewear-safe enclosure. The chamber has a safety-interlock so the laser will not fire when the door is open. It houses a manually controlled x-y-z stage and provides illumination for the optional LIBS-IM-USB Imaging Module. The LIBS-SC has an inert gas induction port and a suction nozzle to remove particulates. In addition, you have the ability to focus the laser to a 40 µm spot size. The sample chamber is designed for use with the Big Sky Lasers we resell. If you wish to use the LIBS-SC with a different laser, please contact Ocean Optics.
LIBS Imaging Module
The LIBS-IM-USB Imaging Module attaches directly to the LIBS-SC Sample Chamber and enables users to magnify a sample image and to establish precisely a laser ablation target on the sample. The imaging module is well suited to a variety of application areas that include forensics, semiconductor analysis, botany, biomedical analysis, gemology and metallurgy.
The imaging module allows a user to see a magnified image of a sample via a CCD camera and PixeLINK, a Microsoft Windows-based image-capture software application. PixeLINK lets a user capture an image and archive it on the PC’s hard drive with detailed annotations. Captured images are useful for comparison analysis and application record keeping.
The CCD camera used in the module offers pixel resolution of 1280 x 1024. Each pixel is 6.0 µm x 6.0 µm square. The cameras provide frame rates of up to 12.7 frames-per-second at 1280 x 1024 resolution.
The imaging module is powered by the PC and requires no external power; an external power supply is required when using the module with a notebook computer. A power cable is included in the purchase price of each module.
Pricing Information
Ordering a LIBS2500 System is easy and was designed to provide the maximum flexibility so that users can only order what they need. Select a LIBS2500-X system, depending on the wavelength ranges needed for your application. Select the Spectrometer Channels (LIBS-CH-X) to include in the LIBS2500 System. Also specify the fiber bundle that corresponds to the number of channels being ordered. Then select the additional accessories.
LIBS Systems
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Item
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Description
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Price
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Fiber Bundle
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Price
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LIBS2500-7
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7-channel
spectrometer system, includes channels A-G |
$31499
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LIBS-BUN-7 |
$1035 |
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LIBS2500-6
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6-channel
spectrometer system, choose 6 channels from A-G |
$27027 |
LIBS-BUN-6 |
$930 |
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LIBS2500-5
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5-channel
spectrometer system, choose 5 channels from A-G |
$22523 |
LIBS-BUN-5 |
$825 |
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LIBS2500-4
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4-channel
spectrometer system, choose 4 channels from A-G |
$18018 |
LIBS-BUN-4 |
$720 |
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LIBS2500-3
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3-channel
spectrometer system, choose 3 channels from A-G |
$13514 |
LIBS-BUN-3 |
$510 |
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LIBS2500-2
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2-channel spectrometer system, choose 2 channels
from A-G
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$9009
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BIF600-2-UV/VIS
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$346
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LIBS2500-1
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1-channel spectrometer system, choose 1 channel from
A-G
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$4505
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P600-2-UV/VIS
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$167
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LIBS Spectrometer Channels
Channels do not have to be consecutive.
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LIBS-CH-A
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200-305
nm wavelength range |
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LIBS-CH-B
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295-400
nm wavelength range |
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LIBS-CH-C
|
390-525
nm wavelength range |
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LIBS-CH-D
|
520-635
nm wavelength range |
| LIBS-CH-E |
625-735
nm wavelength range |
| LIBS-CH-F |
725-820
nm wavelength range |
| LIBS-CH-G |
800-980
nm wavelength range |
Additional LIBS Components
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LIBS-LASER
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Nd:
YAG Laser (from Big Sky Laser) |
$15225
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LIBS-LAS200MJ
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LIBS
200 MJ Laser |
$23625 |
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LIBS-SC
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LIBS
sample chamber |
$10290 |
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OOILIBS
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LIBS2500
operating software |
$500
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| LIBS-IM-USB |
Add-on
imaging module |
$8400 |
Specifications
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Spectrometer range:
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200-980 nm
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Resolution:
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0.1 nm (FWHM)
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Detection:
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CCDs with a combined 14,336 pixels
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Frame rate:
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10 Hz capability, computer-controlled
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Integration time:
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2.1 ms; variable in free-run mode
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Trigger delay:
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-121 µs to +135 µs in 500 ns steps, user-configured
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Trigger jitter:
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+/-250 ns
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Trigger level:
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TTL not to exceed 5.5 V
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Computer connection:
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USB 1.1 or USB 2.0
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Operating systems:
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Windows 98/Me/2000XP on desktop or notebook PCs
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Software:
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OOILIBS and OOICOR
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Power requirement:
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5 volts @ <1 amp, power supply included
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Input optical fiber:
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sampling probe containing 7 fibers, 2 meters long (other
lengths available) with 74-UV collimating lens and a sampling lens
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Dimensions:
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334 mm x 150 mm x 140 mm (spectrometer system only)
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Weight/Mass:
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6.36 kg (14 lb)
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