1. Hamamatsu, “Finger-tip size, ultra-compact spectrometer head integrating MEMS and image sensor technologies,” Hamamatsu product information pages, https://www.hamamatsu.com/us/en/C12666MA.html (15 March 2018)
2. Headwall Photonics, “Nano-Hyperspec” Headwall Photonics product information pages, http://www.headwallphotonics.com/spectral-imaging/hyperspectral/nano-hyperspec (15 March 2018)
3. Photonic crystal spectrometer
4. Compact spectrometer based on a disordered photonic chip
5. Multiple snapshot colored compressive spectral imager