GEMINI Interferometer

Broadband spectroscopy with high throughtput

GEMINI is the ultimate interferometer providing unrivaled accuracy and reproducibility in controlling the temporal delay between the two replicas of the input light. It can be employed in combination with our included drivers and software to measure the spectrum of the input light (either coherent or incoherent source) based on the Fourier-transform approach, as in any FTIR spectrometer.

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Main Features

Rugged, robust, and insensitive to vibrations, thanks to our patented common-path geometry.
Factory assembled and aligned for easy and turn-key integration in any existing setup, requiring no particular optical alignment procedure.
Compact (only 10 cm x 11 cm footprint) and lightweight (approx. 1 kg)
Broad spectral coverage from 250nm to 2300nm, with optional ultra-broadband coverage from 250 to 3500 nm.
It provides continuous spectra, with a virtually unlimited number of spectral bands.
High throughput: featuring a 1-cm clear aperture without any grating nor input/output aperture slits.
Scan range and spectral resolution selectable by the user, who can start with quick measurements to have an initial look at the spectra, and then prolong the data acquisition to increase both the signal-to-noise ratio and the spectral resolution, down to <1 nm in the visible, see below.
Drivers included, with intuitive examples and a complete user manual.
Worldwide quick support.

Specifications

VERSION	S
SPECTRAL RANGE	250nm – 3500nm (500-4200nm on request)
MAX DELAY @ lambda=600nm for the SYMMETRIC version	from -400 fs to +400 fs
MAX DELAY @ lambda=600nm for the ASYMMETRIC version	from -100 fs to +700 fs
Delay Stability	Better than 1 attosecond
Modes of operation	Step Scan (the user can select the dwell time for each delay via software)
Dimensions	100mm x 110mm footprint, 65mm height
Weight	Approx. 400grams

VERSION	L
SPECTRAL RANGE	250nm – 3500nm (500-4200nm on request)
MAX DELAY @ lambda=600nm for the SYMMETRIC version	from -1050 fs to +1050 fs
MAX DELAY @ lambda=600nm for the ASYMMETRIC version	from -100 fs to +2 ps
Delay Stability	Better than 1 attosecond
Modes of operation	Step Scan (the user can select the dwell time for each delay via software)
Dimensions	100mm x 110mm footprint, 65mm height
Weight	Approx. 400grams

VERSION	S	L
SPECTRAL RANGE	250nm – 2300nm (Standard) 250nm – 3500nm (Ultra-broadband) 500nm-4200nm (On request)	250nm – 2300nm (Standard) 250nm – 3500nm (Ultra-broadband) 500nm-4200nm (On request)
SPECTRAL RESOLUTION @ lambda=600nm	1.4 nm (see the Brochure for more details)	0.7 nm (see the Brochure for more details)
MAX DELAY @ lambda=600nm	from -100 fs to +700 fs	from -100 fs to +2 ps
Delay Stability	Better than 1 attosecond	Better than 1 attosecond
Modes of operation	Step Scan (The user can select the dwell time for each delay via software)	Step Scan (The user can select the dwell time for each delay via software)
Dimensions	100mm x 110mm footprint, 65mm height	100mm x 110mm footprint, 65mm height
Weight	Approx. 1 kg	Approx. 1 kg

Applications

Video Tutorial

Scientific Publications

Find out more details regarding our technology in these scientific publications:

Fluorescence Measurements:

IS DISORDER BENEFICIAL IN PEROVSKITE-SENSITIZED SOLID-STATE UPCONVERSION? THE ROLE OF DBP DOPING IN RUBRENE: S. Wieghold et al., J. Phys. Chem. C (2020)
UNDERSTANDING THE EFFECT OF LIGHT AND TEMPERATURE ON THE OPTICAL PROPERTIES AND STABILITY OF MIXED-ION HALIDE PEROVSKITES: S. Wieghold et al., J. Mater. Chem. C (2020)
STOKES SHIFT MICROSCOPY BY EXCITATION AND EMISSION IMAGING: S. Krause and T. Vosch., Opt. Express 27, 8208-8220 (2019)
SINGLE-MOLECULE FLUORESCENCE: E. Thyrhaug et al., PNAS 116, 4064-4069 (2019)
TIME-RESOLVED FLUORESCENCE: A. Perri et al., Optics Express 26, 2270-2279 (2018)
FREQUENCY-RESOLVED EXCITATION-EMISSION FLUORESCENCE: A. Perri et al., Optics Express 25, A483-A490 (2017)

Pump-Probe & Coherent Raman Scattering:

TUNING THE ULTRAFAST RESPONSE OF FANO RESONANCES IN HALIDE PEROVSKITE NANOPARTICLES: P. Franceschini et al., ACS Nano 2020
COHERENT RAMAN SCATTERING: V. Kumar et al., APL Photonics 3, 092403 (2018)
BROADBAND PUMP-PROBE SPECTROSCOPY: F. Preda et al., Optics Letters 41, 2970-2973 (2016)
COHERENT RAMAN SPECTROSCOPY: J. Réhault et al., Optics Express 23, 25235-25246 (2015)

Others:

TIME-DOMAIN PHOTOCURRENT SPECTROSCOPY: L. Wolz et al., Rev. Sci. Instrum. 91, 123101 (2020)
LINEAR AND NONLINEAR SPECTROSCOPY BY A COMMON-PATH BIREFRINGENT INTERFEROMETER: F. Preda et al., IEEE Journal of Selected Topics in Quantum Electronics 23, 8700209 (2017)

VERSION	S
SPECTRAL RANGE	250nm – 3500nm (500-4200nm on request)
MAX DELAY @ lambda=600nm for the ASYMMETRIC version	from -100 fs to +700 fs
Delay Stability	Better than 1 attosecond
Modes of operation	Continuous Scan or Step Scan (in this case, the user can select the dwell time for each delay via software)
Dimensions	100mm x 110mm footprint, 65mm height
Weight	Approx. 400grams

VERSION	L
SPECTRAL RANGE	250nm – 3500nm (500-4200nm on request)
MAX DELAY @ lambda=600nm for the ASYMMETRIC version	from -100 fs to +2 ps
Delay Stability	Better than 1 attosecond
Modes of operation	Continuous Scan or Step Scan (in this case, the user can select the dwell time for each delay via software)
Dimensions	100mm x 110mm footprint, 65mm height
Weight	Approx. 400grams

VERSION	S	L
SPECTRAL RANGE	250nm – 3500nm (500-4200nm on request)	250nm – 3500nm (500-4200nm on request)
MAX DELAY @ lambda=600nm for the ASYMMETRIC version	from -100 fs to +700 fs	from -100 fs to +2 ps
Delay Stability	Better than 1 attosecond	Better than 1 attosecond
Modes of operation	Continuous Scan or Step Scan (in this case, the user can select the dwell time for each delay via software)	Continuous Scan or Step Scan (in this case, the user can select the dwell time for each delay via software)
Dimensions	100mm x 110mm footprint, 65mm height	100mm x 110mm footprint, 65mm height
Weight	Approx. 400grams	Approx. 400grams

Specifications can be subject to change without notice.

For more information, please contact us

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