(CUV-FL-DA) Direct-attach Cuvette Holder, 1-cm path, 200-2000 nm

Ocean OpticsSKU: CUV-FL-DA


The CUV-FL-DA cuvette holder attaches to Ocean Insight light sources and couples via optical fiber to our spectrometers, creating a small-footprint system for fluorescence and relative absorbance experiments. The CUV-FL-DA is optimized for the 200-2000 nm range, holds 1 cm pathlength square cuvettes and eliminates the need for a fiber from the excitation or illumination source. A few simple adjustments allow you to use the CUV-FL-DA for absorbance.

The CUV-FL-DA is well suited for fluorescence, thanks to UV-enhanced, aluminum-coated mirrors that enhance signal reflection within the sample compartment. That increased signal reflection, combined with greater signal intensity resulting from direct attachment to the excitation source, provides CUV-FL-DA users with much greater fluorescence intensity than is possible with most cuvette holders.

No excitation or illumination fiber – sample cell attaches directly to light sources

Enhanced fluorescence – optical design increases signal collection

Versatile – simple adjustment converts from fluorescence to absorbance accessory

Collimating Lenses Three 74-UV fused silica lenses (200-2000 nm) One of 74-UV fused silica lens (200-2000 nm) Two 74-UV f/2 fused silica lenses (200-2000 nm) Two 74-UV f/2 fused silica lenses (200-2000 nm) Two 74-UV f/2 fused silica lenses (200-2000 nm)
Filter Slot Specification Two slots in total. Each slot accepts one 12.5 mm and 25 mm diameter filters. Accepts filters up to 6.35 mm (1/4”) thickness Accepts filters up to 6.35 mm (1/4”) thickness Accepts filters up to 6.35 mm (1/4”) thickness No
Pathlength 1 cm Up to 150 mm thick (solids)
Up to 150 mm pathlength (cuvettes)
1 cm 1 cm 10 cm 1 cm to 10 cm (adjustable)
Z Dimension Specification 15 mm 15 mm 15 mm 15 mm 15 mm 15 mm
Connector SMA 905 SMA 905 SMA 905 SMA 905 SMA 905
Base Material Black anodized aluminum
Base Measurement Guide Scored at 1 mm segments
150 mm total length
Dimensions 111 mm x 90 mm x 74 mm 200 x 67 x 157 57 mm x 61 mm x 29 mm overall 58 mm x 140 mm x 38 mm 97 mm x 147 mm x 40 mm 200 mm x 67 mm x 70 mm 150 mm x 50 mm x 50 mm
Integrated Light Source No No No No No No No
Light Source Mount Diameter 9.52 mm (3/8”)
Reflection Mirrors Two (2) of UV-enhanced
Mounting Bars Material Black anodized aluminum
Mounting Bars Positioning Four 3/8-24 threaded holes
Mounting Bars Threading Accepts lenses with 3/8-24 threads
Uses M6 setscrews for adjusting the bars
Water Input Fittings for
Temperature Regulation
No 3.175 mm (1/8”) NPT 3.175 mm (1/8”) NPT No
Weight 618 g 1 kg 80 g 230 g 540 g 726 g 490 g

Payment & Security

American Express Apple Pay Diners Club Discover Meta Pay Google Pay Mastercard PayPal Shop Pay Venmo Visa

Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.