We have designed and fabricated two-color infrared light emitting diode (LED) emitting in the wavelength regions of 3–4 lm and 5–10 lm. The interband cascade (IC) LED device was grown on n-type GaSb substrate and has 30 cascaded stages for the long-wave infrared (LWIR) and 15 cascaded stages for the mid-wave infrared (MWIR) emission bands. The two active regions are separated by a 0.5 lm thick ...

We present a device and method for performing vector transmission spectroscopy on biological specimens at terahertz (THz) frequencies. The device consists of artificial dielectric birefringence obtained from silicon microfluidic grating structures. The device can measure the complex dielectric function of a liquid, across a wide THz band of 2 to 5.5 THz, using a Fourier transform infrared spect...

ABSTRAK Desain yang sangat padat pada lokasi gulungan kabel streamer kapal seismik dapat menimbulkan titik-lemah karena lokasinya di tengah geladak dan area kerja operator belakang. Hal ini meningkatkan risiko kerusakan peralatan terhadap keselamatan operator. Operator harus berjalan bolak-balik atau menugaskan lain untuk memantau berarti diperlukan waktu tambahan selama pengoperasian. Kedua op...

By using a polyelectrolyte layer gold nanoparticles have been assembled onto a Ge internal reflection element. Upon illumination with visible and near infrared light strong infrared absorption has been observed, which can be traced to intervalence band transitions in Ge. This reveals the existence of holes in the Ge near its valence band edge. The switching between light and dark states is fast...

Aiming at providing a better user experience, we propose a gestural remote control able to operate infrared-enabled devices with simple hand movements. In the proposed system, the user’s hands are identified by red and green gloves. The X and Y coordinates of each hand’s center of mass are calculated and input into a gesture recognition finite state machine (FSM). This FSM classifies the hand m...

Periorbital rhytids are often the first signs of aging skin for which young patients seek a non-invasive, no downtime treatment. Recently, several skin-tightening modalities based on deep dermal heating with various energy sources, such as monopolar and bipolar radiofrequency, as well as laser and broadband infrared light sources, have been introduced to treat mild wrinkles and skin laxity. Thi...

BACKGROUND We investigated the patient characteristic factors that correlate with identification of i.v. cannulation sites with normal eyesight. We evaluated a new infrared vein finding (VF) technology device in identifying i.v. cannulation sites. METHODS Each subject underwent two observations: one using the conventional method (CM) of normal, unassisted eyesight and the other with the infra...