Sairon Prism Coupler (SPA-4000)
Analyze refractive index and thin film thickness
Prism Coupler is a measurement system to examine thin film properties such as refractive index, thickness, dn/dT (temperature dependency of index), propagation loss, or birefringence. It utilizes the prism coupling method. In the prism coupling method, unlike ellipsometry, reflection from the backside of substrate is less likely influence a measurement result. This means that special attention is not needed to measure a layer of film even on the transparent substrate. In addition, it can analyze samples with higher index than an Abbe refractometer. Also, the prism coupling method is less influenced by surface or boundary conditions as it utilizes propagating waves inside the thin film. Prism Coupler can measure the dependence of refractive index on wavelength by changing a incident laser beam. In order for prism coupler to obtain refractive index and thickness of the film at the same time, it needs to find at least two modes. To do so, sample thickness generally has to be as long as laser wavelength, or more.
About SPA-4000
Prism Coupler SPA-4000 has been supplied mainly with leading companies, research institutes, and universities in Asia including Korea, Japan, China, Taiwan, Singapore, Malaysia, etc. Now we have partnered with JY TECH in South Korea, which is the manufacturer of it. We are the exclusive seller of SPA-4000. This excellent technology is available to all our EU customers.
Introduction Video
Key features
- Loss measurement of high quality film with low propagation waveguide loss (~0.05dB/cm)
- High resolution measurement for both refractive index and thickness of thin film
- High accuracy measurement of bulk or substrate materials
- dn/dT (index VS temperature) measurement
- Dual layer film measurement
- Index profile for the film with graded index
- No information requirement of lower layer for dual layer film
- Unrelated film / Substrate combinations
- Easy to use
Configurations
Basic configuration
- 632.8 nm He-Ne Laser
- GGG(n=1.965) prism & Holder (index :<1.8)
- One controller and PC interface(RS-232)
- Si-photodiode Detector
- TE measurement
- Analysis software (O/S : MS Windows)
Options
- TM Mode option for each wavelength
- Ge-Detector for Infrared Laser
- Rutile (n=2.865) prism for high index refraction (index:1.8~2.45)
- Solid state Laser ,Laser Diode Module(405~1550 nm);user choice
- Sample Rotation system (-90 ~ +90 degree)
- Thermo optic coefficient measurement system (dn/dT)
- Liquid measurement system
- Propagation LOSS measurement system
Performance
Refractive Index
|
Measurement range (GGG prism) |
1.0 – 1.8 |
|
Measurement range (Rutile prism) |
1.8 – 2.45 |
| Accuracy | +/- 0.001 |
| Resolution | +/- 0.0005 |
Thickness
| Measurement range | 0.4 – 20 um |
| Accuracy | +/- 0.5 % |
| Resolution | +/- 0.01 um |
Bulk (index only)
| Accuracy | +/- 0.001 |
| Resolution | +/- 0.0001 |
Liquid (index only)
| Accuracy | +/- 0.001 |
| Resolution | +/- 0.0001 |
Thermo-Optic Coefficient
| Temperature range | Room temp ~ 150 ℃ |
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Loss measurement
| Measuring limitation | below 0.05 dB/cm |
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Demo system & Sample test
Would you like to see our system and test your samples? A demonstration system is accessible at our partner’s site in Belgium. Additionally, we can offer sample testing service for free at JY-TECH in South Korea. Please don’t hesitate to reach out to us for further details.
Academic Publishing
- Fluorinated Poly(phthalazinone ether)s with Tunable Refractive Index: Synthesis, Characterization and Optical Properties
- Linear and nonlinear optical properties of an organic polymer composite film
- Synthesis of polysilisiquioxane used as core layer material of optical waveguide
- Low-loss planar optical waveguides fabricated from polycarbonate
- Synthesis, characterization and optical properties of fluorinated poly(aryl ether)s containing phthalazinone moieties
- Preparation and Optical Characters of Polymer Composite DR13/PMMA Films
- Alkyl-substituted carboxyl-containing polyaryletherketones and the crosslinking modifications with various bisphenols: Preparation and optical properties
- Preparation and properties of transparent poly(methyl methacrylate) nanocomposite films
- Synthesis and characterization of fluorinated crosslinkable poly(phthalazinone ether)s bearing tetrafluorostyrene groups for optical waveguides
- The Generation of Biaxial Optical Anisotropies in Polyimide Films by an Uniaxial Stretch Method
- The simplest method for fabrication of high refractive index polymer–metal oxide hybrids based on a soap-free process
