Newport offers a full range of Beam Expanders and Objectives to meet various experimental requirements. Our beam expanders provide a fixed expansion factor with adjustable divergence to effectively control the beam size of laser output beams. Depending on the power level of your laser, standard or High-Energy beam expanders can be chosen. Objective types include Precision Objective Lenses, UV Objective Lenses, Laser Diode Objective Lenses and Reflective Microscope Objectives. A typical application for the microscope objectives is use with our spatial filters which can be found in the Multielement Optical Assembly section.
Selecting an Optical Beam Expander or Objective
Click Beam Expanders and Objectives to shop or browse all of our standard models, or select a product series below for more information on our products and capabilities.
| Laser Beam Expanders |
Features |
 |
Laser Beam Expanders |
• 3x to 30x
• Galilean optical design
• Ideal for use with HeNe lasers
• Wavefront distortion less than Λ/4
• Transmission greater than 95% |
 |
High-Energy Laser Beam Expanders |
• 4x to 20x expansion
• Galilean design eliminates focused retroreflections
• Air-spaced optical design with large entrance aperture
• Adjustable focus for collimation at various wavelengths
• Damage threshold up to 8 J/cm2 |
 |
Fixed Expansion Laser Beam Expanders |
• 3x, 5x and 10x fixed expansion factor
• Galilean optical design
• Adjustable divergence on all models
• Transmission greater than 98%
• AR coated for 1064 nm, 532 nm, and 355 nm |
 |
Zoom Beam Expander for Refractive Beam Shaper |
• Compatible with Refractive Beam Shapers |
| Objectives |
Features |
 |
Microscope Objective Lenses |
• Microscope objectives
• Infinity corrected objectives
• Visible AR coated |
 |
Reflective Microscope Objectives |
• Wide spectral band
• Long working distances
• High numerical apertures
• Zero chromatic aberration
• Negligible coma, spherical, and astigmatic aberrations |
 |
UV Microscope Objective Lenses |
• UV fused silica lenses
• Infinity corrected, ideal for laser applications
• Excellent wavefront quality
• High damage threshold |
 |
Laser Diode Objective Lenses |
• Ideal for collimating or focusing
• Diffraction limited performance
• AR coated for high transmission
• Excellent wavefront quality
• Corrected for laser diode cover glass
• Microscope objective-type housing |