Technical Resources
Nonlinear Frequency Conversion: SHG, SFG, DFG and OPO
Understand wavelength relationships, harmonic generation, resonant enhancement and parametric conversion in nonlinear crystals.
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Technical Resources
Practical guides to optical principles, materials and handling.
Technical Resources
How Faraday Optical Isolators Suppress Laser Feedback
Follow the polarization of forward and reflected light through a polarizer–Faraday rotator–analyzer isolator.
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DPSS Laser Architectures: From Pump Light to Converted Output
Compare eight reference layouts for continuous-wave, pulsed, ultraviolet, blue and parametric solid-state laser systems.
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Focusing, Collimation and Beam Expansion: Four Worked Examples
Use the optical invariant to calculate focused spots, fiber collimation, Galilean beam expansion and extended-source imaging.
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Light Collection and System Throughput: F-Number, NA and Étendue
Design the complete path from an incoherent source to a detector using collection angle, aberrations, radiance and optical extent.
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Selecting Optical Materials: Transmission, Thermal Behavior and Reference Data
Compare common glasses, crystals and infrared materials, with mechanical-property and wavelength-dependent refractive-index tables.
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Handling and Cleaning Laser Optics
Choose a compatible cleaning method, remove loose particles first, and protect optical coatings during solvent, tissue and polymer-film cleaning.
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