Pellicle Beam Splitters Pellicle Beamsplitter

Unlike traditional glass beamsplitters, pellicle beamsplitters utilize a fragile 2-5 micron nitrocellulose membrane coated with specialized dielectrics and stretched across a metal frame. This unique ultrathin design provides unparalleled advantages, including minimal dispersion for ultrashort pulse lasers, negligible double-pass distortions, laser damage thresholds exceeding 10 kW/cm2, and nearly perfect wavefront quality from strain-free mounting. Additionally, pellicles are unaffected by vibrations or thermal lensing. Ideal for advanced laser applications in research, medical, industrial, and defense realms, pellicle beamsplitters push the boundaries of laser technology through their robust yet fragile construction.

 

Unlock next-level laser performance with the revolutionary pellicle beamsplitter, now featuring our thinnest 2-micron nitrocellulose membrane yet for extraordinary 20kW/cm2 laser damage threshold and negligible dispersion even for femtosecond pulses. Our proprietary mounting technology preserves flawless wavefront quality across the 90mm clear aperture without distortion. Made with the highest precision to isolate your beam from vibrations, thermal lensing, and double pass artifacts, our pellicle beamsplitter represents the pinnacle of laser beam splitting innovation. When unsurpassed precision matters, trust the experts and elevate your laser system with the cutting-edge pellicle beamsplitter.

 

Features

- Thin pellicle membrane

- High laser damage threshold

- Precise split ratio

- Broadband performance

- Uniform split ratio

- Robust frame

- Low wavefront distortion

- Durable coatings

- AR coated

- Large clear aperture

- Compact and lightweight

 

Parameters

Product name	Pellicle Beamsplitter
Pellicle Thickness	2μm
Clear Aperture	90mm diameter
Laser Damage Threshold	>10kW/cm2
Wavelength Range	400-1100nm
Split Ratio	50/50±1%
Transmission	>90% at 45°AOI
Reflection	>90% at 45°AOI
Wavefront Error	<λ/10PV@633nm
Surface Quality	40-20 Scratch-dig
Coating Uniformity	<1% across clear aperture
Beam Deviation	<5 arcsec
Environment	10-90% humidity, non-condensing
Operating Temperature	15℃ to 30℃
Storage Temperature	-10℃ to 55℃
Mounting	Strain-free frame

 

Applications

- Flow cytometry - Splitting laser beams for cell analysis

- Bioimaging - Multiphoton microscopy, confocal microscopy

- Optogenetics - Targeting neurons with split laser beams

- Semiconductor inspection - Splitting laser for wafer defect analysis

- Interferometry - Generating reference beams for wavefront sensing

- Optical coherence tomography (OCT) - Splitting light source for imaging

- Quantum optics - Beamsplitting for quantum entanglement experiments

- Laser marking - Splitting laser into multiple beams

- Lidar - Creating transmit and receive optical paths

- Pumping optical parametric oscillators (OPOs) - Splitting pump laser

- Optical traps - Splitting beam into two traps

- Plasmonics - Exciting and analyzing surface plasmon waves

 

What is a pellicle beamsplitter on a microscope?

Microscopes rely on high-quality optics to produce clear, precise images. At the heart of many advanced microscopes sits a specialized optic called a pellicle beamsplitter. This innovative component consists of an ultra-thin membrane that is just a few microns thick and is mounted in a rigid frame. Despite its gossamer appearance, the pellicle beamsplitter plays a profoundly important role.

 

The beamsplitter's job is to divide the light path into two arms for illumination and imaging. The pellicle simultaneously lights both ways with close to equal brightness by transmitting and reflecting light with minimal loss. This clever splitting maximizes light usage efficiency, wasting no photons unnecessarily.

 

Unlike conventional glass beamsplitters, the pellicle introduces negligible aberrations into the wavefront thanks to its microscopic thickness. The result is a crisp, undistorted image at the eyepiece or detector. This uniform performance across the aperture makes pellicle beamsplitters suited for quantitative microscopy.

 

With special dielectric coatings, pellicle beamsplitters can fine-tune the split ratio or optimize specific wavelengths for advanced techniques like fluorescence imaging. Their imperviousness to vibration and thermal lensing artifacts further improves stability and image fidelity.

Ultimately, the nearly magical pellicle membrane accomplishes what no conventional optic can - the simultaneous illumination and imaging of specimens with exquisite clarity and efficiency. This capability empowers microscopists to probe deeper and analyze the intricate secrets of the microscopic world in finer detail.

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