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A new microheater for the wavelength selective infrared emitter, which we have proposed, is fabricated showing the clear enhanced emission peak due to the surface plasmon polariton. Compared to the previous device, the thermal isolation is improved using 2µm-thick Si membrane having 3.6 and 5.4mm outer diameter. The emission at the wavelength of the absorption band of CO2 gas is enhanced confirming...
A new reflection-type wavelength selective infrared micro-emitter is proposed. Surface plasmon polariton, which occurs on metallic grating at the wavelength near to the pitch of the structure, is used for controlling thermal emission. Emission peak at wavelength near to the period of the grating is observed. The micro-heater is introduced for the thermal emitter. Since the loss due to the thermal...
A non-contact voltage sensor is proposed for realizing the isolation from the main circuit of the power line. The high voltage generates the electrostatic force. The sensing is based on the nature of the electrostatic force. The applying the electrostatic force is same with adding the negative spring to the resonator. The resonant frequency decreases with the voltage. The parallel plate electrode...
New reflection-type wavelength selective IR emitter is proposed. Surface plasmon polariton, which occurs on metallic grating at the wavelength near to the pitch of the structure, is used for controlling thermal emission. Emission peak at wavelength nearly equal to the period of the grating is observed. As for other wavelength, the reflectors including grating confine the IR power. The emitter temperature...
New reflection-type wavelength selective IR emitter suitable for portable gas sensor is proposed. Wood's anomaly, which occurs in metallic grating at the wavelength equal to the pitch of the structure for normal incidence, is first used controlling thermal emission. Emission peak at wavelength nearly equal to the period of the grating is observed. Q-factor of the observed peak is ~12.5 for TM polarization...
New methods to integrate wavelength selective filter into a thermopile detector using absorbance spectrum of a polymer material and to deposit the absorber selectively onto hot junctions of the thermopile detector are proposed. Hydrophilic absorber solution is selectively deposited on hydrophilic region on the detector. The fabricated detector shows +100% increases from baseline at λpeak of the absorber...
Human papillomavirus (HPV) is established as the cause of almost 100% of cervical carcinomas. However, the association of HPV with oral squamous cell carcinomas (SCCs) is less well understood. We examined the prevalence of HPV in oral SCCs in samples of Japanese and Chinese populations. Using in situ polymerase chain reaction (PCR) analysis (MY09 and MY11 consensus primers), HPV was detected in the...
We have developed an optical fibre having a silicone buffer layer which is stable against various environmental attacks. The transmission loss of the fibre after cabling was only 2.3 dB/km at 0.85 ?m.
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