RHEED

Surface Physics, Uncompromised

Why It Matters

For most labs, RHEED is:

  • A camera feed
  • A couple of ROIs
  • An intensity trace
  • A vendor UI that hasn’t evolved in decades

The physics is rich.

The software is not.

Surface reconstructions, Kikuchi lines, sub-lattice features — they are there.

But often buried in background noise, compression artifacts, or poor dynamic range.

RHEED should be a surface microscope in real time.

Not a dim viewer.


Full Analytical Control

UnicornOne’s RHEED module replaces traditional standalone RHEED software entirely.

It includes:

  • ROI creation and coloring
  • Multi-ROI intensity tracking
  • ROI profile scans
  • Line scans
  • Time-resolved pixel mapping
  • Time-resolved 3D surface contours
  • Oscillation auto-fitting (after first full oscillation)
  • LUT tables (default + custom)
  • External analysis filters via plugin (DFT, custom transforms, etc.)

All operating inside the control plane.

Not as a detached viewer.


Oscillation Intelligence

After the first full oscillation, the system can:

  • Auto-fit oscillation period
  • Predict growth rate
  • Track drift
  • Detect damping
  • Flag anomalies

This ties directly into Flux and growth modeling.

RHEED stops being “monitoring.”

It becomes quantitative.


HDR Mode — Real High Dynamic Range

Developed in collaboration with users at PDI Berlin.

This is not a cosmetic filter.

It is per-frame HDR processing with ~25 ms latency.

It:

  • Removes background intelligently
  • Enhances streak contrast
  • Reveals hidden reconstructions
  • Brings out Kikuchi lines
  • Highlights sub-lattice features

Features researchers have physically had access to for 50 years — but software rarely exposed clearly.

HDR mode is a switch.

Seeing is believing.


Adaptive Analysis via Plugin

The RHEED pipeline is extensible.

Plugins can:

  • Perform adaptive fitting
  • Apply temperature-calibrated intensity models
  • Adjust for growth mode transitions
  • Pull calibration data from Workbooks
  • Execute user-defined analysis routines

GaN intensity modeling.
Temperature-dependent behavior.
Custom research workflows.

RHEED becomes programmable.


True Lossless Capture

You can record:

  • Full video streams (MP4, MKV, AVI, HFYUV)
  • Intensity traces
  • HDF5 (int16 array) for true 100% lossless capture

Every pixel.
No compression artifacts.

Publication-ready datasets.


RGB Packed Bit Encoding

UnicornOne offers a unique RGB packed-bit encoding method:

  • Capture 8-bit to 16-bit camera data
  • Losslessly compress into RGB image frames
  • Recover original pixel values exactly
  • Transfer across programs without data loss

No silent degradation.

What you record is what the camera saw.


Universal Camera Pipeline

From:

  • USB webcams
    To:
  • 16-bit industrial SDK cameras

The pipeline is unified.

Features include:

  • Mouse-wheel zoom
  • Multiple concurrent views
  • Zero additional display latency
  • Latency monitoring across full pipeline

You can prove your latency is 25 ms.

And you can see the difference.


Integrated Everywhere

RHEED is not confined to one window.

It appears:

  • In the System cockpit
  • In Overview
  • Inside Recipes
  • Within Logging
  • In Workbooks

Without duplicating processing.
Without adding latency.

Surface feedback becomes structural.


The Experience

You have never experienced RHEED like this.

Not because the physics changed.

But because the software finally respects it.

Once you see streaks emerge clearly in HDR.
Once you correlate oscillations with flux modeling in real time.
Once you record truly lossless surface evolution—

You do not go back.