CMOS sensor-based miniaturised in-line dual-functional optical analyser for high-speed, in situ chirality monitoring

CMOS sensor‐based palm‐sized in‐line optical analysis device for microchemistry systems

“…The total size of the device was 69 mm W × 29.5 mm D × 25 mm H ; thus, the volume was as large as 51 cm 3 . This value is smaller than both 1/1000 of a typical desktop polarimeter and smaller than 1/10 of our previous device (164 mm W × 140 mm D × 40 mm H , 920 cm 3 ) [1].…”

“…The integration of in situ measurement capability is expected to boost the advantages of microchemistry systems. We have proposed an in-line optical analysis device and experimentally verified its capability of in situ polarisation rotation and single-wavelength absorption measurements [1]. The core of the in-line optical analysis device is a polarisation-analysing CMOS image sensor fabricated with standard CMOS technology [2,3].…”

[Paper] Demonstrations of Polarization Imaging Capability and Novel Functionality of Polarization-Analyzing CMOS Image Sensor with 65 nm Standard CMOS Process

“…The output level also depends on the illumination intensity of the incident light, as shown in As mentioned in the section 2.2, we aim to use the subtraction readout for differential polarization measurement. The differential measurement can be a solution to observe relative change of polarization, such as an in situ optical rotation observation 10) . In application, the optical rotation of the measurement target.…”

“…We also demonstrated the application feasibility of the polarization-analyzing CMOS image sensor with 0.35 µm process. An in-line dual-functional optical analyzer for chemical solution that is capable of measuring optical rotation and single-wavelength optical absorption was fabricated and demonstrated 10) .…”

Polarisation analysing complementary metal‐oxide semiconductor image sensor in 65‐nm standard CMOS technology

“…Each polariser has a different angle and the sensor can measure the polarisation angle of incident light in real time without mechanical rotation. In our previous study, we placed a polarisation analysing image sensor in the path of a chemical microreactor system [7]. The system allows the reaction process of optically‐active molecules to be monitored in real time.…”