Advantages of the CPL Solo

The CPL Solo is an exquisitely sensitive small & affordableCircularly Polarized Luminescence system.

Data acquisition method is elegant, direct, and digital.

OLIS* is a mature & internationally respected corporation which designed, produces, and supports the system from our facilities in Athens, Georgia

Direct acquisition on first principle of
the correct answer
Far more affordable than any
commercial alternative
Far smaller than any commercial
alternative
Designed-in upgradeability of hardware
and software
Easily enhanced for
Phosphorescence Lifetime so to
qualify CPL as circularly polarized
fluorescence or phosphorescence
Supported sample holders include
Peltier cell holder (1 & 4 cell
options), variable angle thin film
holder, 1.4T permanent magnet,
and more.

*On-Line Instrument Systems, Inc. (OLIS) was founded by the author of the 1974 Analytical Chemistry paper, “Recording polarization of fluorescence spectrometer. Unique application of piezoelectric birefringence modulation.”

In the nearly 50 years since, Dr. Richard J. De Sa and his staff have pioneered the most innovative and exciting advances in absorbance, fluorescence, circular dichroism, and circularly polarized luminescence spectrophotometry systems.

Today’s CPL Solo is the culmination of decades of achieving one brilliant breakthrough after the other. A less researcher-centric company might charge twice the amount for this world-class product.

We aspire to make CPL available to all who need it.

Value provided to researchers

Key differentiators over competitors

Affordable! Under US$100K for

UV/Vis; under $200K for NIR

and IR models

Small!

Entire system – spectrometer, computer & keyboard, electronic box – requires less than a meter of bench space.

Highest Sensitivity Detection

Uses the highest sensitivity chain counting photon counting PMT with direct collection and separation of linearly, circularly, and non-polarized contributions through the advanced OLIS data acquisition software.

Brilliantly intense Excitation source with effectively perfect stability over long and short acquisition periods.

Wavelength-specific filtered or unfiltered LED(s) positioned millimeters from the sample. Nearly immeasurably low variation in intensity over tens of hours.

The perfectly Correct Answer by Definition

Direct collection of raw IL and IR signals.

Direct calculation of CPL by definition: glum = 2((IL – IR)/ (IL + IR))

Correct units

Presentation of answer as glum , the luminescence dissymmetry ratio (or factor): glum = 2((IL – IR)/ (IL + IR)))

Successful with smallest to largest signal strengths.

Freedom to select integration times for data collection speed appropriate to samples of signal strength from 0.001 - 2 GLUM.

As of July 2024, the range will be 0.000001-2 glum

Relentless reliability and Maximum longevity.

Single moving component (grating in the monochromator) presents minimal hardware to fail

Most digital design

Minimum of electronics (reduces price and maintenance); utilization of FPGA firmware for modern instrument control and data handling

Most modern computerization

Win 11 computerization with useful & powerful 2D and 3D presentation and analysis and single click option for direct export into Excel or as CSV file for presentation, reports, and external storage.

Alternatives are $150K to $250K

Two to three times the footprint of the Solo

Analog PMT to A/D converter and lock-in amplifier

Broadband Xe arc lamp through double monochromator

Complex, large, less stable, and far more expensive than LEDs

Indirect collection of de-coupled intensity signals and calculation of CPL using these decoupled intensities and a calibration value. The answer is correct only if numerous variables are perfect; no reversible data handling is possible and no separation of IL or IR for examination of each.