Multi-scan optical system
The present disclosure relates to the field of optical systems. The envisaged multi-scan optical system is compact and stable. The system comprises an excitation source, a hydra fiber cable, a wavelength selector, an optical element, and a detector. The excitation source is configured to emit composite light. The hydra fiber cable has a head and a plurality of tentacles, and is configured to receive the composite light via a second lens. The plurality of tentacles is configured to emit the composite light towards the wavelength selector which includes a plurality of optical slits (s 1 -s 8 ) and a plurality of shutters. The wavelength selector is configured to selectively collect and filter the composite light directed by a first lens and the plurality of tentacles by means of the plurality of shutters. The detector is configured to detect the plurality of spectral line scans reflected by the optical element for spectrometric analysis.
1. A multi-scan optical system comprising:
an excitation source configured to emit composite light;
a hydra fiber cable disposed downstream of said excitation source, said hydra fiber cable having a head and a plurality of tentacles configured on the ends of said hydra fiber cable respectively, wherein:
said head is configured to collect the composite light emitted by said excitation source via a second lens; and
said plurality of tentacles is configured to multiplex the composite light collected by said head, and further configured to transmit multiple composite lights;
a wavelength selector having a plurality of optical slits (s 1 -s 8 ), said wavelength selector configured to selectively collect and filter the composite light directed by a first lens and the multiple composite lights transmitted by said plurality of tentacles, and further configured to direct a plurality of spectral line scans, of different wavelengths, corresponding to each of said plurality of slits (s 1 -s 8 ); and
a detector configured to detect said plurality of spectral line scans reflected by an optical element for spectrometric analysis.
2. The system as claimed in claim 1 , wherein said wavelength selector includes a plurality of shutters configured to sequentially select at least one optical slit (s 1 -s 8 ).
3. The system as claimed in claim 2 , wherein said plurality of shutters is operated pneumatically or electrically.
4. The system as claimed in claim 1 , wherein said first lens and said second lens are configured to direct the composite light received from said excitation source towards a first slit (s 1 ), of said plurality of slits (s 1 -s 8 ), and said hydra fiber cable respectively.
5. The system as claimed in claim 1 , wherein said excitation source is selected from the group consisting of an inductively coupled plasma, a direct current plasma, and a microwave induced plasma.
6. The system as claimed in claim 1 , wherein said optical element is a concave holographic diffractive reflection grating.
7. The system as claimed in claim 1 , wherein said first lens and said second lens are spark light collection lens respectively.
8. The system as claimed in claim 1 , wherein each of said plurality of spectral line scans is associated with respective incident angle.
9. The system as claimed in claim 1 , wherein said detector is a charge coupled device.
10. The system as claimed in claim 1 , wherein the wavelength of said plurality of spectral line scans is in the range of 170 nm to 380 nm.