Single-photon counting device: A highly sensitive and reproducible biophoton emission measurement technique based primarily on single-photon counting has been developed. A second-generation version of this technique has made possible the first measurements of the quantum statistical properties of biophoton fields.
PIN/Charge Integrating Amplification (P/CIA): A PIN/Charge Integrating Amplification (P/CIA) detection technology has been developed that can be used in the detection of very weak light emission in the near-infrared region, within which certain species of oxygen emit.
Single-photon images of plant tissue: Single-photon-counting images of germinating soybeans and other plant tissues have been obtained using only the ultraweak light emitted by the specimen.
Transmission spectrophotometer: A transmission spectrophotometer based on the use of a micro-channel plate has been developed that has the highest resolution in the world for single-photon counting spectroscopy.
Fluorescence in spinach chloroplasts: Well resolved emission spectra of white light-illuminated spinach chloroplasts at room temperature show that delayed fluorescence occurs at 685 nm one second or more after excitation.
Light from sea urchin eggs: Light in the visible region was detected during the fertilization of sea urchin eggs.
Ultraweak light from mammalian nucleus: The first observation of ultraweak light emission from the mammalian nucleus was obtained.
Phase transitions in biological membranes: Studies also provided the first observations of phase transitions in biological membranes without the use of artificial chemical probes or labels.