The optical axes (blue) are perpendicular with a crossing point that is mutually perpendicular with the vertical mounting axis (red). With this orientation, the alignment remains unchanged even if the holder is turned. For more views, please see the Alternate Views tab above.
- Accommodates Micro or Macro Cuvettes
- Z-Dimension Beam Height: 8.5 mm
- SM1 (1.035"-40) and 30 mm Cage Compatible
- Post Mountable via 1/4"-20 (M6) Tap
Designed to accommodate standard micro and macro cuvettes, the CVH100 Cuvette Holder can be used in fiber or free-space applications.The holder features four SM1-compatible (1.035"-40) light ports, thereby offering two perpendicular light paths for transmission and fluorescence measurements. Both optical axes (blue lines in the photo to the right) and the axis for the post mount (red in the photo to the right) have a common crossing intersection point, which allows the user to turn the holder while maintaining the alignment to the optical axes in free space applications.
When purchasing small volume or window cuvettes, a 'Z' dimension is often specified. This 'Z' dimension is the length from the bottom of the cuvette to the center of the sample chamber window on the cuvette. The CVH100 and the included fiber adapter are designed such that the beam height will be 8.5 mm above the bottom of the cuvette (see the Specs tab for a diagram).
The holder is shipped with a collimating SMA-to-SM1 fiber adapter, allowing the cuvette holder to be directly connected to fiber-based light sources, detectors, or spectrometers. We recommend our multimode patch cables for interconnection. An uncoated N-BK7 collimating optic is included. Two SM1 end caps are also included so that unused ports can be covered to prevent dust from entering the optomechanical assembly.
The CVH100 cuvette holder includes one CVH100-FH filter holder, which is designed to house Ø1" mounted filters measuring up to 7 mm in thickness. These filters are typically used to achieve wavelength isolation for incident or emitted radiation. The filter holder is located between the cuvette and one of the ports. Additional CVH100-FH filter holders can be ordered separately, thereby enabling quick exchange of filters.
Ports of the Cuvette Holder
Input light port with 9 mm x 14 mm slotted hole
Output light port with Ø12 mm round hole
Ports of the 2nd optical axis with Ø9 mm round hole
All four access ports on the cuvette holder are equipped with four 4-40 taps for compatibility with our 30 mm cage systems and a single bore that has internal SM1 (1.035"-40) threading for direct mounting to our lens tubes or other SM1-compatible products such as our OSL1 white light source or our mounted high-power LEDs (MxxxL2 series). The CVH100 can be post mounted using the 1/4"-20 (M6) mounting hole on the bottom of the cuvette holder. The black anodized aluminum coating protects the mount from corrosion in typical lab environments.
Thorlabs offers a selection of UV fused quartz cuvettes for use with our cuvette holder. These high-quality cuvettes transmit light down to 200 nm and are available in macro, micro, and super micro sizes for 3500 µL, 1400 µL, 700 µL, and 100 µL samples. They are available in versions with two polished windows for absorption spectroscopy or four polished windows for fluorescence spectroscopy where the measurement of the signal is at right angles to the beam path.