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Specac

Specac SeaGull – Variable Angle Reflection Accessory

A versatile, multi-modal reflection accessory providing precision-controlled variable angles from 15° to 85° for ATR, specular, and diffuse reflectance measurements

Product Overview

The Specac SeaGull is a sophisticated research tool designed for the comprehensive study of surfaces and thin films. Its unique "arc" design allows the angle of incidence to be varied continuously without the need for optical re-alignment, maintaining a consistent focal point at the sample surface. This makes it an ideal platform for determining optical constants, studying molecular orientation, and performing depth profiling of multi-layered materials.By incorporating specialized sampling "pucks," the SeaGull can be quickly converted between ATR, Specular Reflectance, and Diffuse Reflectance modes. This flexibility, combined with its ability to accommodate large or oddly shaped samples, makes it a staple in high-end material science and polymer research laboratories. Whether analyzing a semiconductor wafer or a liquid-air interface, the SeaGull provides the geometric precision required for high-accuracy infrared spectroscopy

Key Features

  • Continuously Variable Angle: Adjusts from 15° to 85° for optimized surface sensitivity.
  • Multi-Modal Capability: Supports ATR, specular, and diffuse reflectance in one unit.
  • Alignment-Free Design: Maintains energy throughput across the entire angular range.
  • Depth Profiling: Enables the study of material properties at varying penetration depths.
  • Polarizer Compatible: Ideal for Brewster’s Angle measurements and orientation studies

Specifications

Clear Aperture10 mm

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