Auxcera (Shanghai Taoteng) has rich experience in the biomedical market. Biomedical devices use a lot of fluorescence principles. Multi-channel filters, dichroic filters, narrow-band filters, long- and short-wave filters, notch filters, etc. are used in the entire system.
Fluorescence is a weak signal. Usually, it needs to transmit fluorescence to the maximum extent and LED light (what we call excitation light) to the maximum extent to reduce the influence of excitation light on the fluorescence signal. Therefore, it has extremely high requirements for the OD value of the filter. At the same time, some analytical instruments will generate multiple excitation lights when analyzing substances. Therefore, multi-channel filters and notch filters appear to separate multiple excitation lights and LED lights.
How to achieve a higher spectral curve steepness?
How to achieve a higher cutoff depth?
How to make a multi-channel filter?
This is the demand of the biomedical instrumentation industry for the coating industry. It is also the direction that Auxcera has been working on.
To achieve extremely narrow bandwidth, extremely steep spectral curve, and extremely high cutoff depth, it is necessary to use relatively complex film layers and relatively more film layers. In addition to our excellent film system design and process control capabilities, we also have magnetron sputtering coating and ion beam sputtering coating equipment. Through extremely precise control of film thickness, a film with extremely strong adhesion is deposited on the substrate to achieve excellent results.
Four BandPass Filtet
Process: magnetron sputtering hard film
Center wavelength: customizable
Half peak width: 25nm
Average transmittance: > 95%
Cut-off depth: > OD6@300-1100nm
Double BandPass Filter
Process: magnetron sputtering hard film
Center wavelength: customizable
Half peak width: 18nm
Average transmittance: > 95%
Cut-off depth: > OD5@300-1100nm
Notch Filter
Process: magnetron sputtering hard film
Center wavelength: customizable
Half peak width: 23nm
Average transmittance: T>93%@ =300-900nm
Cut-off depth: >OD6@632nm
Multi-Notch Filter
Process: magnetron sputtering hard film
Center wavelength: customizable
Half peak width: 23nm
Average transmittance: T>93%@=300-900nm
Cut-off depth: >OD6@325-1200nm
Ultra-steep dichroic mirrors
The transition band steepness is less than 3nm (0.5%-97%)
Auxcera (Shanghai Taoteng Electronic Technology Co., Ltd.) was founded in 2022. The company is located in Baoshan District, Shanghai. It has R&D centers in Zhongshan and Shenzhen, covering an area of 1,000 square meters and currently has more than 50 employees.
The company's founding team comes from top domestic universities, research institutes and well-known overseas coating companies, including 2 doctors in optical thin films. We focus on the development of semiconductor and optical thin film processes. Relying on multiple types of advanced coating equipment (Vecco Spectra/ion beam sputtering coating, North Huachuang B630/vacuum evaporation coating, Ulvac/continuous magnetron sputtering coating, Optorun OWLS magnetron sputtering coating, Beneq/atomic layer deposition), advanced detection equipment (SEM, AFM, four-probe, ellipsometer, Agilent Cary 7000, Zygo MST interferometer), we provide reliable and high-performance coating services for semiconductors, consumer electronics, AR/VR, instruments, lidar and other fields.